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I just puchase my first corvette about 3 weeks ago a 2001 C5, not sure when the oil was changed last but do know he was using Mobile 1 synthetic. Didn't know if I needed to stay with that or go to the Royal Purple Synthetic. Any Suggestions......Thanks, Russell
You can use any synthetix that meets GM4718M
Just buy one from a brand you trust
Formula Shell Fully synthetic
Quaker State HorsePower
Pennzoil Platinum
Mobil 1 ( NOTE: But NOT the extended life version)
Castrol Syntec
Castrol Edge
Valvoline now has one as well
Thanks for the info, didn't know if one was better than the other. Just want to make sure I keep it in great shape, may just stay with the Mobile 1 since that is what it's had the last few years.