Originally Posted By: Corvette Owner
Well, my 1998 Corvette (C5 Generation, LS1) runs 5,500-6,000 miles on Mobil 1 until my OLM goes to zero.
BUT, they later changed the OLM based on service information (UOAs). They increased the base from 10,000 miles maximum to 15,000 miles, a 50% increase. I used the original OLM until I went to Castrol Edge, then I went to 150%.
So, I guess 8,250-9,000 miles would be my estimate. Note that I drive very conservatively, I probably only have redlined my car 5 times !
I have 138,709 miles on my Corvette.
On my other cars, I go 7500 miles with synthetic. I have changed to Pennzoil Platinum for them.
On a side note, I was getting high lead readings in my Corvette when using
Mobil 1, changing to Castrol Edge lowered them by 66%.
I have 138,709 miles on my Corvette and it only uses a 1/4 quart of oil each oil change. (My Murano has 123K miles, Impala 117K, Chevy Van 103K miles and no engine problems with any of them.).
High lead eh with mobil 1. It seems that mobil 1 routinely has higher wear metals than other oils however we are talking in ppm so will that equate to shorter engine life,perhaps,or this particular engine may just shed metals.
Personally I'd use the oil that helped the engine shed less metals,but over the life of a vehicle it's likely just noise and will not affect longevity.