What oil is best? and what ratio?

[Keith Gandy]

That's a good question.

None of the high end dirt bike oils are Jaso rated. They only claim to exceed them

 

[wildroamer]

I'm eager to know how this oil works for you.
SDS https://www.stens.com/assets/media/pdf/msds/2016/770-680,770-684_(Full_Syn_2Cycle_Oil).pdf

Yup, that's the stuff. We shall see.

 

[jake wells]

I didn't know that it was same as opti 2. Where is that info?

stens mix is opti 2
stens full synthetic is blended by spectrum lubricants which blends husqvarna oils.
https://www.stens.com/assets/media/...0-255,770-263_(Sten_Mix_2cycle_Lubricant).pdf
https://www.stens.com/assets/media/pdf/msds/2016/770-680,770-684_(Full_Syn_2Cycle_Oil).pdf

 

[jake wells]

None of the high end dirt bike oils are Jaso rated. They only claim to exceed them

husqvarna xp oil has no rating either.

 

[wildroamer]

From what I've seen the Sten's is much cheaper. So there's that going for me, haha.

 

[Keith Gandy]

Motul 700 states for injection systems also. Usually means its thinner

 

[huskihl]

Just because an oil is blended in the same factory as another doesn't mean it's the same oil. The base oil might be the same, but the additive package has proprietary ingredients.

Pepsi and mountain dew are made by pepsico, but aren't the same soft drink.

 

[PissRev]

Several years ago I spoke to Chip at Spectrum Corp. He would not absolutely admit it but hinted that Their Alco No Smoke 2 Stroke syn and Bailey's Woodlandpro syn were the same formulation. They both look and smell the same prior to mixing and the burned exhaust smells the same.

 

[wildroamer]

"Just because an oil is blended in the same factory..."

Kinda what I was thinking. Regardless, it was considerably less expensive than Ultra. WTF, I'll give it a whirl.... Eventually....

 

[Ron660]

Motul 700 states for injection systems also. Usually means its thinner

710 is about the same viscosity as 2R. I know Mike has tried both. I haven't tried my 710 yet. I might try an 800/710 blend like Mopar does. I think Mopar tried an 800/R50 blend.

 

[Ron660]

710 and 2R have very similar specs as a typical "chainsaw" oil like ultra.

 

[KenJax Tree]

Why blend it? Why not just use one or the other?

 

[Ron660]

Why blend it? Why not just use one or the other?

I agree but I also like experimenting. Maybe a "blend" would be a better fit for someone that uses a ported saw, not stock, that may require more protection. All the chainsaw oils I've seen have a viscosity range, at 100C, from 7 - 9 cSt's. Dirt bike racing oils range from 12 - 20+ cSt's. The exception is 2R which is 8-9 best I remember. The higher viscosity oils may be more beneficial for extreme uses like milling. Hopefully Redbull can solve all of our questions. If so, I think Redbull needs a tip jar so we can contribute.

 

[Moparmyway]

710 is about the same viscosity as 2R. I know Mike has tried both. I haven't tried my 710 yet. I might try an 800/710 blend like Mopar does. I think Mopar tried an 800/R50 blend.

Yup, 50/50 mix of R50 and 800 Off Road.

Still using it ...........

 

[Ron660]

Yup, 50/50 mix of R50 and 800 Off Road.

Still using it ...........

If you get a chance, I'd love to see some pics of the piston crown and bottom-end.

 

[Moparmyway]

If you get a chance, I'd love to see some pics of the piston crown and bottom-end.

 

[Ron660]

View attachment 15836 View attachment 15837View attachment 15838View attachment 15839

Mopar has found the winner!

 

[Ron660]

View attachment 15836 View attachment 15837View attachment 15838View attachment 15839

Thanks. 661 and 32:1?

 

[jake wells]

now mix 1 liter of belray h1r with a liter or motul 800 then mix in a quart of r50.

 

[Terry Syd]

Moparmyway, what plug is that? I like the cut center electrode with the additional sharp edges.