Which is the best additive?

I personally choose STP

When i was at autozone the best one they had was an [NoS] octance booster. It said on the bottle it boosts it by 7 points, it was 11 bucks.

But i just stuck with Stp. its cool because the one i got had all these flames on it, and it defianlty stops knock and ping.And smells good to haha.

I have heard that Sea Foam is the best?

you do know when your talking about additives and it says 7 points...that means if your running 93 octane your only increasing it to 93.7

Octane booster is a waste of money....do yourself a favor and if you want higher octane gas just buy the real stuff and dont waste your money on "boosters"

I totally agree...I was going to say the same thing myself but I wasn't totally sure if it was right.

GM Top Engine Cleaner. Need to go to a GM dealership to get it. Comes in either a spray or liquid. Let your PCV suck it down to about 1/3 left of the can, then pour it into your oil spout. It should stall the engine. Let it sit for a few hours then start her up, wait a minute or two, then rev to about 2k. Plumes of white smoke pouring out the exhaust :) You'd be surprised how much power it'll free up after it does it's cleaning.

--Jay

GM Top Engine Cleaner. Need to go to a GM dealership to get it. Comes in either a spray or liquid. Let your PCV suck it down to about 1/3 left of the can, then pour it into your oil spout. It should stall the engine. Let it sit for a few hours then start her up, wait a minute or two, then rev to about 2k. Plumes of white smoke pouring out the exhaust :) You'd be surprised how much power it'll free up after it does it's cleaning.

--Jay


I agree if your car has a few miles on it....GM Top engine Cleaner does an excellent job cleaning carbon deposits which in turn rob your engine of its maxium performance.....

BUT I have never heard of putting it into your oil....I dont think I would recommend that.....its a top engine cleaner as in air intake and such....why would you put it into your oil?

I agree if your car has a few miles on it....GM Top engine Cleaner does an excellent job cleaning carbon deposits which in turn rob your engine of its maxium performance.....

BUT I have never heard of putting it into your oil....I dont think I would recommend that.....its a top engine cleaner as in air intake and such....why would you put it into your oil?

Hey, it works! :) It's called Top Engine Cleaner, but does so much more. The guy at the dealership where I bought my first can told me that it was 'strictly for carbureated engines'...uh-huh... Some folks put it in their gas tanks too and run a bottle through, but I wouldn't be so bold as to make that move. Just drain your oil after and toss in some synthetic. Makes for a very happy engine:-)

--Jay

Best oil additive is the GM EOS (engine oil suppement)

Other than that, I don't beleve in additives.

I always use additives during Oil changes but from what I have read of the one;s that have been tested prolong is the best but in my opinion any additive is better than no additive... I'm surprised your not a pro additive guy hypsi but your more up to date on this stuff than me since your studying the pro's and con's I'm sure in school so maybe its just something I've trained myself to add at oil change time...

check out
http://www.bobistheoilguy.com/

Most if not all additives are just a marketing gimmick.

I always use additives during Oil changes but from what I have read of the one;s that have been tested prolong is the best but in my opinion any additive is better than no additive... I'm surprised your not a pro additive guy hypsi but your more up to date on this stuff than me since your studying the pro's and con's I'm sure in school so maybe its just something I've trained myself to add at oil change time...


All of the additives you need are already in your oil. By using extra, (IE detergents, anti-oxidents) accually hurt more than help. There is such a thing as too clean of an engine. Espically on engines that have miles on them and then all of a sudden people use additives to "clean there engine" and all that crud is removed. Do people accually think that all of that shit comes out of that 10mm drain plug in your oil pan? Nope, it gets clogged in your pick up screen and be redistributed in your oiling system. Also, injector cleaning??? Gasoline is a solvent, why is it people think that injectors can get soo dirty and clogged but then turn around and use five gallons of gasoline to clean grease and what not off a part (Not reccomended). Or, it will help clean my combustion chamber. WTF tune your car, if there is carbon, its too rich. combustion temps reach up to 1,400-1,500 degrees it will burn shit!. the GM EOS is a great additive for oil. No extra detergents, Also, the national GSCA did a test on oils+additives for cam break in and the EOS and straight 30W with no detergent was the best that you can buy. Detergent hurts lubercation, and during cam breakin, you need all the lubercation you need.

Throw in some 93 octane AMOCO gas. I've run it in my car for 10,000 miles. It's the best money can buy. It burns clean, helps hp, and will turn tail pipes from black to gray. The bad thing is it's $2.10 a gallon. But if your willing to spend money on additives no big deal right!

Use Castrol Syntec when it comes to oil. I used to race. When the engines were dissasembled the Syntec coated everything where the regular crap was down in the oil pan. The dissadvantage is it costs me $30.00 to change my oil myself.

ruinning too high of an octane can hurt performance of your engine....unless you are tuneing your car to run 93 octane I dont recommend changeing from recommended octane levels from the User manual

assuming his car is LS1, 10:1 compression. They like the 93. thye get better milage with 87 though. better burn with 87. Just the computer will pull out timing and you won't get theperformance

Don't be a chicken. Its pump gas not racing fuel. If 93 octane was bad for your car it wouldn't be sold. Besides, the User Manual is for your mom. It recommends you drive with both hands firmly on the steering wheel and never over rev your motor. Fine, read your manual but I really don't believe you'll be impressing anyone with those driving tactics.

Don't be a chicken. Its pump gas not racing fuel. If 93 octane was bad for your car it wouldn't be sold. Besides, the User Manual is for your mom. It recommends you drive with both hands firmly on the steering wheel and never over rev your motor. Fine, read your manual but I really don't believe you'll be impressing anyone with those driving tactics.

wow you need to read up on gas and octane levels....

yes 93 is out there cause some cars do require it (like mine)....but if you run a octane higher than needed you will hurt your performance of the engine

Do you guys have Ultra94 from Sunoco down in the States? My Z has always run Ultra94 - sometimes I'd be lazy and use Magnum93 from Pioneer (cause its right around the corner from my house), but literally within the past month Pioneer has changed it to Premium91 - its shit. All of the other premium gas from Shell, Petro Canada, Esso are only 91 octane. So although I'm only required to run 92 octane the Ultra94 is what she gets.

I also happen to agree with the no-additives train of thought (slick50, Duralube, etc...). Good gas and Mobil1 every 4-5K works fine for me.

on the TA's its reccomended to run 93 or does it say 91+ i cant remeber but i know it was up thier

i just read that whole oil additive thing that someone posted the link too. i am never going to buy that stuff for my engine.... again (it went into the civic)
thanks for posting that

Best additive's you can put in your car is a good oil change and filter. Don't waste your money on these imaginary wonder additives. If you really want to clean up your engine, go to a Jiffy Lube and have them flush it out. Just use some recommended synthetic oil unless you have an older engine. Synthetics will be able to coat and follow along the surface better than regular mineral oil which mean they would be able to find their way to bad seals easier. Its not that the synthetic oil is bad for an engine, it will just exploit older seals on an older engine. Use regular recommended mineral oil for older engines, and synthetic for newer ones (if you want to pay the extra $$$). Thats the best advice I can give (plus it saves you some money).

Here is a list of what not to add
1:water
2:fire
3:sugar
4:pee
5:little styrefoam balls

wow you need to read up on gas and octane levels....

yes 93 is out there cause some cars do require it (like mine)....but if you run a octane higher than needed you will hurt your performance of the engine

For starters Just how much do you know about motors? I checked your car out on car domain and saw zero internal mods done. I rebuilt the top end of a 350 the other day and intalled a roller 4.6 in a project car after that.

Your problem is your to busy READING UP to actually do anything. People like you need to keep your comments to yourself.

For starters Just how much do you know about motors? I checked your car out on car domain and saw zero internal mods done. I rebuilt the top end of a 350 the other day and intalled a roller 4.6 in a project car after that.

Your problem is your to busy READING UP to actually do anything. People like you need to keep your comments to yourself.


do you have a scanner on your car?
If you scan your car you may find out that a higher octane will hurt your performance....
www.ls1m.com
I dont just read I like to play as well....

zero internal mods? I guess rockers and pushrods are not internal? New Springs and retainers?
I have no bottom end mods but the 3800 has a strong bottom end....
Transmission is another story though...and I am just waiting for that to break

EDIT: On a side note(aka Cheapshot) I find your responce very childlike....maybe you should get back to the books and take your backwoods education to the next level

Higher the octane slower the burn. If your vehicle doesn't require premuim octane do to a lower compression ratio there is basically no reason to use it but it will not cause any harm that I have ever heard of. You both should try to be a little nicer when commenting to other member's but lets please all try to be adults now and drop the petty comments,

Higher the octane slower the burn. If your vehicle doesn't require premuim octane do to a lower compression ratio there is basically no reason to use it but it will not cause any harm that I have ever heard of. You both should try to be a little nicer when commenting to other member's but let please all try to be adults now and drop the petty comments,

Im not saying it will harm your engine but it will affect the performance....higher octane is only needed if your experieanceing Detonation (aka KR)....Detonation hurts performance, so higher octane is needed to calm it....
but Higher octane fuel can also hurt the performance if there is no detonation....slower burn creates less HP

From union Bay Racing
http://www.unionbayracing.com/Fuel_Defined.pdf

"The higher the octane, the harder it is to get to ignite. A higher octane may be necessary to
prevent pre-ignition and detonation in a high performance engine. Higher-octane fuel will
generally burn slightly slower than a lower octane fuel, which could require a change in ignition
timing. Using more octane than you need will not help power, the slower burn rate will actually
cause you to lose some power."

How much horsepower difference you think you would get from going from 87 Octane to 91 when your vehicle is not detonating and only requires 87, 1,2,5,10,20,100?. Trust me were not talking about 100 shot of NOS here. If he believes using premuim is better and you shared your opinion let it go. Ignorance is bliss. Also you don't need to explain octane levels and detonation to me but thanks.

Also you don't need to explain octane levels and detonation to me but thanks.

when did this thread become just about you?

my posts are never directed at anyone in particular they are always just a General FYI...I believe in spreading knowledge and killing ignorance

when did this thread become just about you?

my posts are never directed at anyone in particular they are always just a General FYI...I believe in spreading knowledge and killing ignorance
I don't know if your familiar with the term reply but if not then you need to introduce yourself to webster and I'm sure the Grand Prix forum is really lonely without you so why don't you get the hell out of here and if he's not harming his engine and chooses to use premuim on "his vehicle" you already explained yourself so now shut up.

I don't know if your familiar with the term reply but if not then you need to introduce yourself to webster and I'm sure the Grand Prix forum is really lonely without you so why don't you get the hell out of here and if he's not harming his engine and chooses to use premuim on "his vehicle" you already explained yourself so now shut up.


lets be grown up now....

are all TA drivers childish in there conversations?

Im only here to help....and I dont believe in letting stupid people spread stupidity

This forum is here to help and not make people stupid

YOUR A VERY VERY OFFENSIVE PERSON!!!!!!!!!

Either you don't relize or you think your smarter than everyone and everyone should stop what they are doing and listen to Mr. Smarty pants. Well I tried to defuse a argument that was building and you attacked me and tell me how I was being childish to you?. Did I tell you that your a poopie head? , Did I push you down and steal your lunch money?, Did I push you and run to the corner crying?. I don't think so. I asked you to stop telling people what to do instead of telling them why they should do it and dropping it. So now I will ask you one last time. Drop the subject unless someone ask's your opinion or I will be asking Hypsi/Shortbus to do something about your behavior that I have asked you numerous times to stop now. I'm done

How is stateing facts telling people what to do?

You: I can fly
Me: No you can't
You: Yes I can

You: I can fly
Me: No you can't
You: Yes I can
First off, I have very good reason to use premuim gas in my car, second if you haven't been reading my post's, I never disagreed with you(I just stated he will not damage his car or cause a major perfomance issue from using premuim). What I have asked you many many times now was to stop trying to start arguments with people but you will not QUIT!.

me stateing facts is not staring arguments...its me trying to teach people something on these forums....

if you want to jump in and tell ME what to do try useing IM and not posting on the forums...that would have been the "grown up" thing to do....especially if you agree with me

wow do you ever SHUT UP!?! or even know how to??!

wow do you ever SHUT UP!?! or even know how to??!


LOL....no

OK boys, if we want to debate lets debate.
I'm sure there's at least a few things we can all agree on:

- Excessive heat causes detonation (or pre-detonation really) - when the engine/combustion chamber builds up too much heat and causes the air/fuel charge to ignite at the wrong point in the combustion cycle.

- Octane (as mentioned) acts as a type of stabilizer for fuel, ensuring that internal engine heat doesn't ignite the fuel charge. The minute you add/increase boost or compression your engine builds up more heat (compression chambers get hotter). If you don't switch to higher octane fuel you increase the risk of detonation.

- Detonation robs HP in computer controlled cars because the PCM retards timing to protect the engine.

So what's the debate - that higher octane fuel robs HP in cars that don't require it, because it burns slower? (or is harder to ignite??). Well I agree with Firebird John - as far as an ignition spark is concerned, that fuel charge is combusting no matter what (high octane or not, its burning up all the same). There is no way a higher pump octane fuel is going to make it any harder for an ignition spark to ignite a fuel charge - especially to the point of losing any kind of HP. But in terms of a fuel's flash point, the extra octane will make it much harder for the fuel charge to be ignited by the engine’s internal heat.

If anything, the extra – unnecessary – octane will tend to burn cleaner that regular pump gas, thus cutting down on deposits and preserving long term HP.

Very nicely put DVS, it answered any questions anyone might have. It was accurate and well thought out. It explained that even though you don't need to use premuim in 87 recommended car it will not cause any side effect and then after you were done sharing your opinion, YOU SHUT UP!. I think it was perfect. More people should learn to post like that. Well done o'le man ,well done.

OK boys, if we want to debate lets debate.
I'm sure there's at least a few things we can all agree on:

- Excessive heat causes detonation (or pre-detonation really) - when the engine/combustion chamber builds up too much heat and causes the air/fuel charge to ignite at the wrong point in the combustion cycle.

- Octane (as mentioned) acts as a type of stabilizer for fuel, ensuring that internal engine heat doesn't ignite the fuel charge. The minute you add/increase boost or compression your engine builds up more heat (compression chambers get hotter). If you don't switch to higher octane fuel you increase the risk of detonation.

- Detonation robs HP in computer controlled cars because the PCM retards timing to protect the engine.

So what's the debate - that higher octane fuel robs HP in cars that don't require it, because it burns slower? (or is harder to ignite??). Well I agree with Firebird John - as far as an ignition spark is concerned, that fuel charge is combusting no matter what (high octane or not, its burning up all the same). There is no way a higher pump octane fuel is going to make it any harder for an ignition spark to ignite a fuel charge - especially to the point of losing any kind of HP. But in terms of a fuel's flash point, the extra octane will make it much harder for the fuel charge to be ignited by the engine’s internal heat.

If anything, the extra – unnecessary – octane will tend to burn cleaner that regular pump gas, thus cutting down on deposits and preserving long term HP.

Beleve it or not, using a high octane fuel on a low compression engine will not burn all the way, and here is why I say this, On my car, my static compression is 8:1. When I have 93 in my car and when I am not under boost, the computer makes my injection pulses go to minimum. The reason it does this is because with the 93 there are unburned particals of fuel in the burned air fuel mixture. The O2 sensor picks up the unburned particles and tells the computer it is rich. Well The computer can only pull back so much injector timing. Even with the injector timing puled all the way back, my car while not under boost will run rich. This is ok for a FI car like mine because when I am at 24 PSI, my compression raito increases to 21:1. Now on a NA car, you cannot change the compression raito, it is fixed. So if you have a 9:1 compression raito, running 93 will cause the same thing except when you guys are up in the RPM's and flowing enough air to support the burning of the higher octane fuels.

In a nut shell, higher octane takes more heat to burn. In order to have more heat in an engine you have to have the compression to create it. In order to have that compression raito, you have to have the air in the cylinder to support it. Shit does not burn without oxygen.

A car that has 12.8:1 compression can run 91 octane at idle, why? Because even though the cylinder has 12.8:1 compression, the engine is not filling the cylinder with alot of air, so the cylinder pressures are low. You can't base your octane choice on compression alone. you need to base it on your maximum cylinder pressures. It is pressure that creates heat, not compression.

Formula is right, your HP is not reallly affected that much in a NA car. Maybe 2-3 HP. What is affected is your cars fuel economey. If you honestly beleive that higher octant is cleaner or can make more power, you might at well run deisel fuel in your car. You can't even measure deisel fuel on the ocatne scale.

As far as the nit picking, John is right, giving an opinion is 100% perfectly acceptable but, comments like "are all TA drivers childish in there conversations?" and other comments like that are not acceptable. Consider the argument done. If you have something realivant to say, post it up. If you are going to be flaming or anything of the sort, I suggest you don't post it.

Race Fuels (http://www.palmerracingfuels.com/race_fuels.htm#Sunoco)

Additive (http://www.palmerracingfuels.com/Fuel_scents_additives.htm)

scroll to the bottom of the second post.*POWER PLUS TOP LUBE*.

useful,and comes with a fru fru scent for the ladies.

for a FI car like mine because when I am at 24 PSI, my compression raito increases to 21:1.

Are you kidding me - thats crazy. What would an otherwise stock 10.4:1 LT1 compressoin be if running a 15psi Procharger? (!)

If you honestly beleive that higher octant is cleaner or can make more power, you might at well run deisel fuel in your car. You can't even measure deisel fuel on the ocatne scale.

lol I guess we're spoiled up here, our fuel companies use additives in their gas in the first place - the two major ones are to prevent fuel line freeze up and to lower emissions by burning cleaner. Petro-Canada calls their clean burning additive "Tactrol" but every company has its own shit, and although this may have nothing to do with Octane the companies market their additives by either only offering them in the premium octane blends or offering them in higher concentrations. So I guess I'm used to associating cleaner burning fuel with the higher octane fuels because of the additive concentration (figured it would be similar for you southern boys too. Guess not).

Maybe I'm just superstitious, but she’ll continue to get 94 for as long as its available (I’m hearing now Sunoco will be getting rid of Ultra94 just like Pioneer ditched Magnum93 – something to do with oil prices…)

EDIT: and ya, I can't believe I am losing any HP whatsoever running a 94 octane when the timing only requires 92.

EDIT EDIT: dyno time?? :grinno:

you guys ever see that NASCAR commercial with Jeremy Mayfield when the chick puts on the octane 93 as perfume.. and he says "is that octane 93 yur wearin?"... i love that commercial.. lol