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 spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Engine Oil



Engine Oil Type

Above 10°F (-12°C) 15W-40

Between 0°F (-18°C) and 30°F (-1°C) 10W-30

Between -10°F (-23°C) and 0°F (-18°C) 5W-30 Synthetic Oil without Block Heater

Between -10°F (-23°C) and 0°F (-18°C) 10W-30 Synthetic Oil with Block Heater