Originally Posted by livethefunk

I just got an oil change on my Z at the dealership and they used mobile 1, and it seems a bit more sluggish after. I asked my brother in law about it cause he know a lot about cars and racing, and he said the viscosity of the oil might be why. the computer might sense this. not sure if thats even remotely possible but next oil change im going to get nissan ester and see how see drives.