Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the logical successor to CHARM, I recommend you try it!

Link: lemon-manuals.la

System Specifications

Lubricant/Viscosity

Temperature above -4 ° F API GL-4 80w/90
All Temperatures API GL-4 75w/85 or 75w/90