CHAPTER 12
PAGE 8
PAGE DATE: 12. June 2015
MAINTENANCE MANUAL EXTRA 300LT
9 Close the hatch on the upper part of the cowling.
Replenish engine oil
Replenish engine oil using oil of the following specifica-
tion:
Aviation Grade Straight Mineral oil
MIL-L-6082 or SAE J1966 Aviation Grade Straight Mineral
oil shall be used to replenish oil supply during the first 25
hours of operation and at the first 25-hour oil change.
Continue to use this grade of oil the first 50 hours of
operation or until oil consumption has stabilized. The aircraft
is delivered from EXTRA-Flugzeugproduktions- und
Vertriebs GmbH with proper break-in oil (MIL-L-6082
Aviation Grade Straight Mineral oil).
Ashless Dispersant Oil
MIL-L-22851 or SAE J1899 Ashless Dispersant Oil shall be
used after the first 50 hours of the engine operation.
Additive Oil
If an engine has been operating on straight mineral oil for
several hundred hours, a change to additive oil should be
undertaken with caution. If the engine is in an extremely dirty
condition, the switch to additive oil should be deferred until
after engine has been overhauled.
When changing from straight mineral oil to additive oil take
the following precautionary steps:
I M P O R T A N T Do not mix additive oil and straight mineral oil. Drain
straight mineral oil from engine and fill with additive
oil.
* Do not operate engine longer than five hours before
again changing oil.
* Check oil screen for evidence of sludge.
REPLENISHING
Replenishment of Engine Oil
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