Gas Mileage Improvements

[Ultrashock]

I have searched this forums for a while and have only found a little bit on improving gas mileage..........

Right now I get about 14-15 MPG and I know this truck should get better mileage

So if anyone knows of specific ways to improve gas mileage please post it here

Anything besides basic tune-ups and MAF sensors if you know of anything else........

[ZL1power69]

- maintain proper tire presure
- remove unneeded weight (brush guards, sub boxes, running boards, etc), or go on a diet
- if u desire, switch engine oil, trans fluid, and gear oil to synthetic
- use cruise control more often
more examples in this thread;
http://www.automotiveforums.com/vbul...d.php?t=453370

i'm also open to other ideas on how to improve gas mileage. right now im getting between 13-14 mpg with about 95% city driving. during the summer (with the better gas formulas) i was getting 16 mpg (17.5 mpg with acetone).

[teenerball]

Acetone? You can try adding 1oz/5 gallons in the tank....I've seen some say up to 3 mpg increase. I was going to try it on the next fillup...

[joeuser742]

Well, I'm also thinking of things that I can do. I recently realized that I was driving with the front defrosters (climate control) on all the time, which kicked the compressor on now and then. Turning that off helped me for 1-2mpg. Maybe try different types of gas/gas stations. Maybe change the type/weight oil you are using, be careful if you've never used synthetic because I think that's why my original rear main seal started to leak really bad. Someone on this site mentioned loosing some weight...speaker boxes, ... Other than that, all I know of is just the regular maintenance.

[ZL1power69]

Originally Posted by teenerball

Acetone? You can try adding 1oz/5 gallons in the tank....I've seen some say up to 3 mpg increase. I was going to try it on the next fillup...

i used 3oz/10 gallons. acetone does not give a mpg improvement with the winter gas formulas. i lost my 1-2mpg increase when the gas formulas switched from summer to winter. i think the summer formula is reintroduced between april and may.

[joeuser742]

Originally Posted by teenerball

Acetone? You can try adding 1oz/5 gallons in the tank....I've seen some say up to 3 mpg increase. I was going to try it on the next fillup...

I tried that acetone for 1 tank and didn't see the difference, but will try again, this time with maybe 3-4 tanks.
It's weird that there are mixed results with this.

[ZL1power69]

Originally Posted by joeuser742

I tried that acetone for 1 tank and didn't see the difference, but will try again, this time with maybe 3-4 tanks.
It's weird that there are mixed results with this.

the acetone "cycle";
- run 3 tanks with whatever dosage u want
- on the 4th tank, use no acetone
- reset the ecu each time u use the acetone dosage

heres a thread from a while ago about this;
http://www.automotiveforums.com/vbul...hlight=acetone

[93LT]

Our 95 Blazer gets 16.5+ MPG, mostly I would say town driving as we live 5 miles from town, but it is not like we pull out on a freeway and hit 65 to town. I have two stops minimum to town.

Our 93 Blazer is getting 12-13 MPG right now, both use the same Vortec 4.3, both travel the same routes to and from home. My wife drives the 95 and beats me home and to town every day. The 95 just simply runs 100% smoother than the 93. I replaced the CPI and nut kits when I bought the 93 back in November or October but for the past few months it has had a horrible stumble or hesitation just off idle at various times, sometimes cold, sometimes hot. I get no check engine light, no foul smell from the exhaust.

The 95 has 116K and the 93 has 114K. I'm going to tear the upper plenum off this weekend and see if by chance the nut kit or pressure regulator is leaking. A couple hours of my time and a 6 dollar gasket I feel would be money well spent.

On the highway and anything above just off idle and the 93 Blazer runs great. It has had a full tune-up; plugs, wires, cap, rotor, fuel filter, injector assembly, nut kits, tranny fluid and filter, EGR valve was spotless and had already had the gasket replaced with a screened gasket, but I replaced it again as I didn't know this until disassembly.

[BlazerLT]

http://www.automotiveforums.com/vbul...d.php?t=453370

[friesza]

My 2000 is wierd or its just the gas I get....sometimes I will get as much as 16 mpg in city driving and others 14??? And the last trip I took....about a 3 and a half hour highway drive I actually got 26 mpg....I was stunned because I usually get around 22 to 23 highway driving...just using regular gas and no additives....actually it happens once in a while where I will get over 25 mpg its just weird....and no I wasnt going downhill in a tornado...lol....actually I had a side wind from the right front....thats why I cant believe my calculations...which I check numerous times...

[Ultrashock]

The only thing that I have found that can temporarily fix my gas problems is fuel injector cleaner. It works real good for about a couple of months, im looking for something that is worthwhile

[ZL1power69]

Originally Posted by Ultrashock

The only thing that I have found that can temporarily fix my gas problems is fuel injector cleaner. It works real good for about a couple of months, im looking for something that is worthwhile

right before it snowed last, the outside temp got down to about 20 degrees. i desided to try a bottle of prestone fuel injector cleaner w/gas antifreze. needless to say my mpg went from an already low 13mpg to about 10mpg. prestone would not refund my 5 bucks either.

[BlazerLT]

That is the alcohol ruining your economy.

Use a proper fuel from a reputable name brand station and you won't need antifreeze.

[BlazinMlew]

Man I feel real good now. I am still gettin 18-20 mpg in my 2000. I cant wait until I do the plugs and wires and all that good stuff!!

[BlazerLT]

You ust be driving a lot of highway.