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#1
02-20-2006, 08:08 PM
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What oil to use
Well i have a 94 formula with a rebuilt engine and about 27k miles on it. When i bought it they told me they were using none sinthetic 10-40 oil. The same day i changed the oil and been using mobil 1 10-30. Lately I've heard a mix of good and bad things about Mobil 1. What is the best oil i can put in my baby?
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#2
02-20-2006, 08:18 PM
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Re: What oil to use
You want the best?? Like 8-9 bucks a quart? Redline, Amsoil, Royal Purple
Okay...how many miles on the new motor with non-synthetic oil?
__________________
1999 Pontiac Trans Am WS.6 #1747 Stock'ish'
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#4
02-20-2006, 09:01 PM
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Re: What oil to use
Okay.
Good thing. Best to run a motor on the cheaper oil for a while before switching to synthetics. Mobil 1 is great oil. That is what I use.
__________________
1999 Pontiac Trans Am WS.6 #1747 Stock'ish'
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#5
02-20-2006, 09:07 PM
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Re: What oil to use
I use mobil 5K in my car. 1 question Luos... when the guy changed the oil, he said i hafta run 10W-30 in the winter and 5W-30 in the summer. Do you do the same thing???
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#6
02-20-2006, 09:12 PM
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Re: What oil to use
Nope.
I run 5w-30 year round in both cars. Granted, the T/A never leaves the garage if the weather is cooler than 45-50 degrees.
__________________
1999 Pontiac Trans Am WS.6 #1747 Stock'ish'
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#7
02-20-2006, 09:23 PM
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Re: What oil to use
Quote:
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#9
02-21-2006, 03:14 AM
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Re: What oil to use
I use Castrol syntec 10W30 year round ,But I am in a warmer region .Per the owners manual . Rob
__________________
2000 Trans Am six speed Blackbird .Fast enough stock! 2005 Grand Prix. 2005 2500HD Silverado 4x4 , Duramax!!!!!!! Lifted ,Pumped,Humped,Thumped! 1988 JEEP Cherokee: Lifted, Sons new toy.
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#10
02-21-2006, 10:03 AM
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Re: What oil to use
In the grand am I run castrol syntec 20-50 in the summer and 10-30 in the winter. The camaro gets 5-30 mobil 1 but is only out late april to mid october anyway.
__________________
Rusting out Honda Civic $900 Fart cannon muffler: $300 Assorted stickers advertising products you'll never own: $50 Having your @ss handed to you by a brick shaped suv: Priceless. Yup, I own the suv.
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#11
02-21-2006, 12:50 PM
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Re: What oil to use
thing about castrol syntec it is not a full syntec like mobil 1, and wouldent 10w30 in a new motor hurt the rings? Would it be to thick? I have a 305 with 120,000 should i run 10 or 5, 30?
__________________
95 Z71 Silverado 4x4 ext. cab Mods- Flowmaster Exhaust,Intake
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#12
02-21-2006, 01:57 PM
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Re: What oil to use
If you have over 75,000 on a motor using conventional oils, don't change to synthetic. Some do without problems, others start burning oil.
I use Mobil 1 5w-30 year round. And we get extremes in temperature here. Just last weekend we set new record lows (below zero). This summer...well over 95 degrees for several days.
__________________
1999 Pontiac Trans Am WS.6 #1747 Stock'ish'
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#13
02-21-2006, 04:50 PM
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Re: What oil to use
why would it start burning if i go with synthetic?
__________________
95 Z71 Silverado 4x4 ext. cab Mods- Flowmaster Exhaust,Intake
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#14
02-21-2006, 07:13 PM
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Re: What oil to use
Rings are used to the conventional. They can't handle the much more slick synthetic. The rings can start to allow a little oil to blow by...thus burning oil.
__________________
1999 Pontiac Trans Am WS.6 #1747 Stock'ish'
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#15
02-21-2006, 07:21 PM
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Re: What oil to use
OK im still a little confused... I live down in Miami Where temperature is year round at 80 with alot of humidity. Should i go 5-30 or 10-30 Mobil 1. Remember approaching 30k mile on rebuilt engine that has mostly used 10-40 non synthetic oil
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