To Group, I previously asked about break-in  oil, got no responses.
So, if I don’t hear otherwise, I will use straight 30W oil for the
first 3-5 hours then switch to Mobile One synthetic, maybe 20W-50W.
Thanks. Frank clementi


Rotary engines do not require break in. Stick with Mobile one or
Idemitsu rotary engine oil. Mix 2 cycle oil with the fuel one ounce
per gallon.

Paul Lamar

Hi Paul, What is one ounce per gallon in metric units (for those of
us in the rest of the world) Chris.


Good question. If in doubt I go to my favorite web site :)

http://www.onlineconversion.com/volume.htm

4 liters is about one gallon US so 1 ounce liquid US is about 30 cc
in the French system :)

30/4 is 7.5 so 7.5 cc per liter will work fine.


BTW

I got to tell you something. I was getting my ignition system ready
to demo at Sun n Fun and I had a HV coil failure. Panic set in. I had
a old Bosch coil laying around so I cut it open and poured the oil
out. I scavenged the HV section and installed it in the Lamar
ignition. Worked like a charm. Those Germans make nice stuff. Unlike
the junk that comes from china :)

It started working again just a few minutes ago. It is Thursday here
in the US and I got to get on a plane for Florida Sunday night. What
a relief :)


Paul Lamar


The proportions are the same in metric and conventional units.

1/128 = 0.0078125


Multiply the number of liters by 0.0078125.

10L * 0.0078125 = 0.078125L

Convert Liters to CCs.

0.078125L * 1000 = 78.125 CC

You can do the conversion first:

1L * 7.8125 = 7.8125 CC
2L * 7.8125 = 15.625 CC
5L * 7.8125 = 39.0625 CC
10L * 7.8125 = 78.125 CC

If you round down to 7.5, instead of 7.8125, as Paul suggests you get a
4% reduction in the amount of oil in your mix.  Not very significant but
the math is a bit easier.

1L * 7.5 = 7.5 CC
2L * 7.5 = 15 CC
5L * 7.5 = 37.5 CC
10L * 7.5 = 75 CC

If you go for a 2.4% increase in the oil concentration you can simplify
the math even further.

1L * 8 = 8 CC
2L * 8 = 16 CC
5L * 8 = 40 CC
10L * 8 = 80 CC

Mark LaPierre