how long have you been using the 0w30? the first fuel log note mentioning it noted a couple mpg difference. And if they recommend it for cars recommending 5w30, then it may just be advancing oil tech that may be for the best.
Gotta love google. Got his from the mobile1 website
http://www.google.com/url?sa=t&rct=j...27XIJU3iLGinog
Quote:
|
Mobil 1™ 0W-30 Advanced Fuel Economy synthetic motor oil is engineered to improve fuel economy in vehicles where SAE 0W-30, 5W-30 or 10W-30 oil is recommended. An advanced full synthetic motor oil, it is designed to help deliver outstanding engine protection and enhanced fuel economy.
|