Aeroshell 15W or 100W?

[PTK]

This year he changed his tune and said several engine shops were voiding warranty if Shell multi was used and has switched to Philips XC.

Which engine shops are voiding warranty?

[bumper]

Seriously, can you imagine the fur that would hit the fan if an engine shop summarily voided their warranty if someone used an approved Shell oil in their engine?? Really?

 

Shell's attorneys would be all over them and I wouldn't blame them. You'd also be hearing about it on AvWeb, AOPA On-Line, and even on Mooneyspace . . . oh, wait . . .

 

bumper

 

carefully encrypted (ha, ha, NSA) and sent via my free Obama phone

[marks]

My last IO360 I flew to 2,455 hrs then an exhaust valve guide had worn beyond limits.  I always used Aeroshell 15W50, always changed oil at 50 hrs.  I almost always flew the plane just 15 minutes at a time.  I live on an island with no bridge (Martha's Vineyard) and I flew off-island to work every day and back every evening.  There was so much moisture in the oil that in winter just about every time I pulled up the dip stick there'd be this big blob of oily ice stuck to it.  I got the engine overhauled and flew it another 1,350 hours before I switched to a newer airplane.  I think the lesson here is that flying the airplane is what counts.  My plane would generally be flown five or six days a week, both morning and evening.