× 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: 80/90 GL-5 lube in gearboxes?
Posted to Technical Theory Forum on 3/29/2005 2 Replies

As I understand it.

GL4 and GL5 are both current specs. A GL5 is a more stringent specification so a GL5 also meets GL4 and will often be advertised as a GL4/5.

Sulfur and Phosphorous are additives that are often used in these products. More of the additiv... Login to read more.

2 Replies Received (View Replies)