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)

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Engine Oil: Testing and Inspection


Engine oil level, checking

Test requirements:
^ Engine oil temperature at least 60°C
^ Vehicle must be level (horizontal)
^ Wait a few minutes after switching off engine to allow oil to flow back into oil pan.

^ Pull out dipstick, wipe with a clean cloth and insert again to stop.
^ Pull out dipstick again and read oil level.





Markings on oil dipstick:
a - Oil must not be topped up.
b - Oil may be topped up. The oil level may rise as far as area -a- after topping up.
c - Oil must be topped up. The oil level is sufficient if somewhere in area -b- (grooved area) after topping up.

Note: The oil level must not be above marking -a- on the dipstick.