Nissan 370Z Forum - View Single Post

370Z Purist · 07-11-2009, 02:51 PM

You make a perfect educated point.

But it seems you drive a hell of a lot, and most of it likely highway miles (right? 200 miles of city... I don't think so), so obviously, there is lowered stress as to constant stop and go, and short rides.

Performance wise, I don't know pure numbers, but because oil companies are so secretive about their formulation makes it difficult to determine what group oils are a part of. I don't know if AMSOIL is group 4 or 5 (my guess is a little of both with a PAO base stock versus pure polyol ester stock).

07-11-2009, 02:51 PM	#81 (permalink)
370Z Purist A True Z Fanatic Join Date: Jun 2009 Location: Zion, Illinois Posts: 1,873 Drives: '09 370Z-T BS M6 Rep Power: 19	You make a perfect educated point. But it seems you drive a hell of a lot, and most of it likely highway miles (right? 200 miles of city... I don't think so), so obviously, there is lowered stress as to constant stop and go, and short rides. Performance wise, I don't know pure numbers, but because oil companies are so secretive about their formulation makes it difficult to determine what group oils are a part of. I don't know if AMSOIL is group 4 or 5 (my guess is a little of both with a PAO base stock versus pure polyol ester stock). __________________ -Phil "Since one of my brake light bulbs just went out, the forum told me that my piston rings are about to blow."