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Posted to Castrol Forum on 1/24/2018 3 Replies

Keven The oil GURU

My plan is to get 500K out of my 99 Tahoe 5.7L engine. Last one made it 425K Might be a bit overkill but i run another brand from group 5 Fully-synthetic ester formula.

My question is: is there an even better oil out there? V Index highe... Login to read more.

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