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

Engine Oil



Engine Oil

API Grade SE or SG and above
-10° C (14° F) and above 20W-50, 20W-40
-18° C (5° F) and above 15W-50, 15W-40
-25° to 40° C (-13° to 104° F) 10W-30
-25° C (-13° F) and above 10W-50, 10W-40
20° C (68° F) and below 5W-40
10° C (50° F) and below 5W-30
-10° C (14° F) and below 5W-20