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Hawker Pacific - Piston engine technical help

djpacro
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IP: 203.36.172.100

Oils - 2007/01/23 12:46

Thanks for offering help on this forum - this should become a popular website as a result.

One of my pet subjects. We have a regulation telling pilots to follow the Flight Manual. My mechanic keeps telling me that CASA is pedantic on him following the book but he goes quiet when I ask him why he didn't follow the book when he does an oil change in winter.

Lycoming SI-1014 includes a statement that some judgement must be exercised but the same table of oil grades is in the POH with no weasel words. i.e. SAE 40 is the only correct answer for Melbourne throughout the year and the POH doesn't give any choice in winter except to go to SAE 30. I often follow up a discussion on the CASA Single Engine Piston Aeroplane Endorsement Questionnaire with a direction to then go ahead and ask the guy on the fuel truck for a bottle of SAE 40. "But he only gave me this, that's all he has, what do I do?"

Then further discussion.

So, some advice on oils would be good - not just limited to my pet subject above. eg multigrade vs single grade; premium oils eg Shell W100 Plus although I wouldn't expect comment on one brand vs another; Lycoming additive LW 16702.

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Oils

djpacro

2007/01/23 12:46