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Discussion Starter · #1 ·
my tahoe has 100500 miles on it and i use mobil 1 5W30 synthetic oil but today while doing my oil change i noticed that on the oil it says new vehicle formula. now should i use a different oil since my truck has so many miles on it or should it be fine??
 

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I wouldn't worry about it. I run plain old pennzoil in mine with 163,000, my dads with around 300,000 and no problems. I think high mileage oil is more of a marketing scheme than anything. It might do you some good if you have a small leak or something, but thats about it IMO.
 
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