Running rich?

Got some stihl 50:1 mix meant for 2.5 gallons of gas-- my tank holds a little over 2 gallons-- is this close enough?

 

Yup. That's 40 to 1 instead of 50.

I have done it that way for years.

 

Got 2.2 gallons in, well above the safe fill line but its cold and i am using this shortly-- should be fine.

 

So what ratio am i at now

 

((2.2 gals times 128) divide 6.4) is 44:1

 

2.5 gals times 128 divide 50=6.4oz oil, that is where the 6.4 above came from.

 

Yeah, didnt have the oil bottle handy when i asked, didnt want to do the backwards math to figure it out-- had trees to take down.

I got the big broken branch disected and down, one of the backwards leaning trees on down and cut up too. One more to go-- backwards leaner, a bit bigger. I will put pics in another thread later.

 

Is that in the orange bottle Grizz.? My HP (gray bottle) is for 2 gallons of mix.

Gary

 

I sure as hello hope it was, other wise trouble may be brewing @ 55:1!

 

I run BelRay H1R @ 32:1 in all my saws.

 

I always try to mix a little rich on the oil side.
Much better than mixing to lean

Going from 40:1 to 50:1 was from the EPA pressuring the 2 cycle industry.
No better performance, & not much changed in the internal components of the engines.
New Synthetic 2 cycle oils are better, but to lean will cause more wear.

Like Dex says, see that oil in there .
That's what's between the moving metal surfaces, & keeps the parts from seizing.
A little little extra oil will add a little extra life to the engine.

 

Wouldn't mixing 'rich' mean you are running on the lean side if you don't adjust your carb? The more oil you add to the mix the less gas you have to burn.

 

Orange bottle, 50:1 for 2.5 gallons. No probs.

 

+1! I agree!

 

I run 40:1 in all my saws & JD weed trimmer,even the vintage Mac's.

 

Same here. That way I don't need to know which gas can is for which implement!!! All the same!!

 

I run 32:1 in my modern saws. I keep 20:1 mixed for my Mac 10-10 and an old evinrude lightwin I have.