There’s an interesting article
titled “Special Lubes for High-Revvers” in the June issue of
Kitplanes. This is part 2… guess I missed part 1. I found their
comments about using synthetics with 100LL to be in agreement with the comments
made on the Fly Rotary group just this week.
Mark S.
From: Rotary motors in aircraft
[mailto:flyrotary@lancaironline.net] On
Behalf Of WRJJRS@aol.com
Sent: Tuesday, May 10, 2005 11:39
PM
To: Rotary
motors in aircraft
Subject: [FlyRotary] Re: Synthetic
Oil and Leaded Gasoline.
In a message dated 5/10/2005 5:41:08 PM
Pacific Standard Time, ianddsl@magma.ca writes:
Has anybody used a quality 4 stroke
motorcylce oil? They tend to provide
good gear life performance as the transmission is often the sump. They
also
resist foaming at very high RPM. -- Ian
When I worked for Kawasaki they tested tons of oils, a few
stood out. I don't even know if it is still available, but Keystone 20-50
petroleum based was what they used on the wholesale level. This was a
"standard" oil that tested well, at a moderate cost. Omega vacuum
refined petroleum based "semi-synthetic" was a super high-end 20-50.
(about 4-5 bucks a quart 20 years ago) The winner was Redline synthetic
multi-grade for street or straight 40 or 50 wt. for racing. (remember synthetic
40 wt pours more like 30 wt petro)
They did serious testing in the lab
and running engines on the dyno. One thing that synthetic did really well was
gears. Don't forget that most "modern"motorcycles lube the
transmission with the engine oil. A high film strength is needed there. Since
we are lubing many of our PSRU's with engine oil I believe a synthetic is a
good crossover oil that will work well in both. I like redline, but it's
expensive in yank dollars I can't imagine what it goes for, or if it's even
available in Oz. Motul is generally available worldwide but is also very
expensive. I think Mobile
1 is a good oil for the price. Run redline if you're flush it's GREAT oil. If
you have a separate gear reduction I would definitely run Redline in the
gearbox. They make a truly superior gear oil.