What's the best 2-stroke oil?

Worst 2 stroke oil for 2 cycle engines with non-adjustable carbs (except autotune and mtronic) is; BelRay H1R

Reason; The Belray H1R does such a great job at lubricating and not burning in the combustion process, that non-adjustable carbs just cant get enough fuel and tend to run lean. The backpack blower and mini-bike have a lean bog at throttle tip in with BelRay @ 32:1, and without any adjusting needles, there isn't any chance of getting rid of it. Lean down at low RPM worries me at high RPM use under load. Maybe 40:1 would be better and the machines won't have the bog, will wait to try that until after I try all of the other oils @ 32:1.

 

But if its 32:1 there is still the same gas in the mix in belray as lucas? So how could one be lean and the other not?

Curious not trying to pick a fight or anything

 

I believe BelRay H1R oil doesn't contribute to combustion like some other oils do, causing fuel adjustment needles to be open more with BelRay H1R. The non-adjustable carbs just don't deliver enough fuel to feel confident in using BelRay H1R @ 32:1 ..................... will try H1R @ 40:1 in the backpack blower in the future as it was the most effected and had the worst lean bog at tip in. I actually thought I heard it slow down in RPM a few times @ WOT, like when the fuel filter just starts to get restricted. Never ran like that with the Echo synthetic.

Clem, I think we all know by now that you don't pick fights !

 

100% synthetic ester

 

When I tride belray first I had a ported 066. It was run with klotz and tuned to 13.7k or so. When I checked it with belray it was 14.6k. It was almost bad enough I needed the bigger jet to tune it. The H was 1.5 turns out. That and the sinus problems I have with it is why I won't use it.

 

Everything I ran it in needed more fuel, but I didn't have any adverse effects from running it.
I did notice that it made VP smell very differently. Couldn't even tell I was running VP

 

Maybe its a viscosity issue with the belray...

 

It may be. The flash point is low on it.

 

9. Physical & Chemical Properties
Appearance Oily.
Oily.
Physical state Liquid.
Form Liquid.
Liquid.
Color Red.
Red.
Odor Mild.
Mild.
Odor threshold Not available.
pH Not available.
Vapor pressure 0.000009161 hPa estimated
Density 949.00 kg/m3
Vapor density Not available.
Boiling point 539.6 °F (282 °C) estimated
Melting point/Freezing point Not available.
Solubility (water) Not available.
Material name: Bel-Ray H1-R Racing 100% Synthetic Ester 2T Engine Oil
99280 Version #: 3.0 Revision date: 08-30-2013 Print date: 08-30-2013
MSDS US
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Page 3 of 5
Solubility (other) Not available.
Specific gravity 0.949
Relative density Not available.
Flash point 395.60 °F (202.00 °C) Pensky-Martens Closed Cup
Flammability limits in air,
upper, % by volume
Not available.
Flammability limits in air,
lower, % by volume
Not available.
Auto-ignition temperature Not available.
VOC < 0.5 %
Viscosity 121 cSt
Percent volatile < 0.5 %
Other data
Flammability class Combustible IIIB estimated
Viscosity temperature 104 °F (40 °C)

 

So for the same reason it does not carbon up the works, it may not flow as easily...
Seems there's a trade off for everything in this world eh?

 

Maple syrup is thinner than H1R, and it takes a lot of agitation for it to completely mix

 

So does H1R suggest 50:1 mixture? If so, that may be why...

 

H1R recommends 32:1 on engines smaller than like 125cc if I remember right?

 

Hmmm... Just when ya think it's figured out, someone throws a monkey wrench in yer theory...

 

R50 flashpoint is 550 F.