25 ++ 10w-30 5w-30 294818-10w 30 in 5w 30 engine
Pennzoil® motor oil is formulated with Active Cleansing Technology and is proven to protect engines in SAE 10W30, 10W40, W50, 5W and 5W30 viscositiesI plan to switch over to Amsoil from Mobil 1, but can't decide whether to go with 5w30 or 10w30 If it were a regular car driven only on the street, I'd go with the 5w30 year round, but since this is a Z06 and I track the car occasionally, I'm not sure what to go withFor 10W30 oil, the 30 is the same as the SAE 30 viscosity rating for warm oil, but the 10W is the viscosity rating for cold oil, according to a standardized rating system developed by the SAE for winter oil use And that's what the "W" stands for "winter" 5w30 Vs 10w30 Maxima Forums 10w 30 in 5w 30 engine