× 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: 5W-30 verses 10W-30
Posted to Technical Discussion Forum on 4/16/2007 2 Replies

[...trimmed text...]

I found one site that was describing some of the cert tests. Maybe old requirements.

But I was surprised to find that to pass some of the tests the oil only had to pass once. It could actually fail ... Login to read more.

2 Replies Received (View Replies)