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15w-40. Thick oil preserves bare metal best while the truck is sitting.
And when it's started in the cold, how about that flow rate?
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Follow Bill in Utah's advice. He has a silverado 4.8 that see's about 5K a year. If I remember correctly.
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Follow Bill in Utah's advice. He has a silverado 4.8 that see's about 5K a year. If I remember correctly.
??????
Sounds like reasonable advice, Dave 1251, but for some reason, I can't seem to find a post from Bill in Utah in this thread!
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We have been running Mobil 1 in the gasoline engined family vehicles since the middle 1980's, but with it now being group III, I thought time to investigate a change.![]()
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If you want to stay with synthetics that meet the Corvette spec, here's some options:
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Amsoil XL 5/10w-30