× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
Re: Synthetic Motor Oil: Extended Drain Interval - or Not?
Posted to Castrol Forum on 1/27/2017 2 Replies

[...trimmed text...]

I wonder if that slightly elevated fuel content could be a side effect or design inefficiency of direct fuel injection?

Login to read more.

2 Replies Received (View Replies)