Oil weight question
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Car: 1991 camaro
Engine: 3.1L V6 dynomax exhaust
Transmission: 700r4 auto
Axle/Gears: 89 iroc-z 9bolt disc+posi 3.27
Oil weight question
So I'm pushing 300,000 miles on my 3.1 v6 I always change the oil with castrol 10-30 every 3500 and I was told I should change 20-50 weight oil what do you guys think?
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Joined: Mar 2012
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From: Iowa
Car: 14 scion tc/91 camaro rs
Engine: 2.5/ 360 pooch
Transmission: 6spd man/th350
Axle/Gears: na/2.73
Re: Oil weight question
I would say as long as oil pressure is good run your 10w, stay away from synthetic if youre not using it now.
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