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Is Avgas Cooler
Avgas or Mogas? Castrol or Pennzoil? 2% or 3%? What's best for my
engine?
Ask this question in a room full of paramotor pilots then take cover.
Instructors and dealers will come out swinging from the corner of their
chosen ones. But I marvel at the different opinions offered by
reputable, experienced pilots and instructors. here are their
recommendations along with the reasoning behind their preferences. You
can make your own choice from there.
Oil
I talked with a two-stroke engine mechanic who said he mixed regular
motor oil in his two-stroke's gas and it ran fine.
Sacrilege!
Almost everybody agrees that your choice of oil will greatly affect
your engine's operation. But there's a lot of differences on how. A vast
majority of experts seem to settle on synthetic 2-cycle oil for
air-cooled engines.
The goal of oil is to lubricate while minimizing carbon buildup.
Here are some more specific recommendations by top mechanics and
pilots on oils and ratios they have found effective.
1. Scott Traverse prefers
Penzoil 2-Cycle for air cooled motors. I've been told that
2. Alex Varv likes Honda HP fully synthetic at 40:1 (2.5%).
3. Wayne Mitchler prefers Yamalube 2R.
4. Chris Bowles prefers Castrol TTS at 30:1 with mogas
and 50:1 with Avgas.
Gas
Here is another subject that gets swords swinging: what gas to use. The first big
question is Avgas or Mogas. Avgas means 100 octane "low lead."
100 low lead is anything but low in lead. Back when 100 LL earned the
name, it was indeed lighter leaded than other aviation fuels and even
some mogas
(regular auto fuel). Then, when lead was banned from car gas, it was
not banned from Avgas. Some pilots and mechanics absolutely swear
by Avgas for a variety of reasons, while others have reported lead
deposits and slight thrust loss. My read is that more pilots find
benefit in Avgas than drawback. These are all pilots who I trust.
They've got nothing are
giving me good information so there is probably more than meets the eye.
Octane Benefits of Avgas Drawbacks |
