Recommended oils for high mileage engines

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01-23-2005, 05:21 PM

#41

Ironmike4x4

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Quote:

Originally Posted by CynicX

There was nothing in the manual about it...when I get a new vehicle i read it from cover to cover...I'm weird like that....This S-10 was a 4.3 and it was a 2000, so maybe they added it in there in later years...

Matter of fact since it was lowered I had the dealer change the oil and I always took in Mobil 1 for them too use...they never mentioned anything too me....

I dunno, they fixed it, I sold it with 190k miles and the engine still running strong....

Well I am not sure about what year models are affected or if it's all of them. I just remember a customer bringing in synthetic oil and I changed it for them, but my bossman warned and made them sign a waver saying that if it leaks it wasnt our problem. Then the shop foreman who is almost a world class technician said GM does not recommend using synthetics for the s10s. I'm really doubtful about it but I just go with what he says. A friend of mine with an '01 S10 said it was in his manual not to use it, i dunno.

02-11-2005, 06:17 PM

#42

jaymo

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RE: high mile oil

Hey all, Just throwing my 2 cents in.

I have had my 94 toy since it was new and have been running castrol gtx the whole time . And I have pushed it some times past 4000 miles before changing the oil. And I now have 162000 miles on her with little oil loss, none from leaking. I am just now seeing some oil around the valve covers.

Good luck choosing the right stuff...Jay...

02-25-2005, 05:49 PM

#43

91-4runnerguy

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Reply to high mileage oil usage

I have a 1991 toyota 4-runner and i have 260,100 and some miles and I have been using Penzoil 10W-40. It seems to do the job. Runs great!!!

03-16-2005, 06:57 PM

#44

Keggo

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I used Castrol Syntec in my bike for a couple rounds... it worked really good, but for my high performance bike I figured I better get oil specifically made for giant revs. On my 4R I just changed the oil and put in Castrol High Mileage. Castrol is by far my favorite brand of oil... NEVER any problems.