40-1 mix in a 372 Xp and a 441?

[cuinrearview]

Just a question that's all. Percentage wise going from 50 to 40:1 it seemed very small.

Maybe "check your tune" would be better advice. But then again we're probably always mindful of that anyway

 

[blsnelling]

40:1 is preferred to 50:1. I run 32:1 in everything.

 

[Dieseldash]

Depends on the oil..........

 

[Little Al]

If your 372 is an XT they like 32:1 even better.

I was going to say that but Iv'e mislaid my tin hat & flack jacket

 

[Deleted member 117362]

I was going to say that but Iv'e mislaid my tin hat & flack jacket

Here is a way to get the ball rolling, if you are wearing full body armor. I run Amsoil 100 to 1, doesn't everyone?

 

[1Alpha1]

Don't forget to re-tune, changing your mix ratio changes your air/fuel mix

That's what I do like about M-Tronic. No need for me to worry about tuning the saw.

 

[1Alpha1]

My lucky coin takes the place of tin foil protection.

 

[RIDE-RED 350r]

32:1 in everything I own, from stock saws, to my ported saws, to my ATC's and old outboards. Why skimp on lubrication for all of the moving parts in the engine???

 

[holeycow]

Yes, why?

I want my 2 strokes to smoke. Lots when cold and just a little when warm.

Ahhhhh. Lubrication. Ahhhhh.

 

[Little Al]

Here is a way to get the ball rolling, if you are wearing full body armor. I run Amsoil 100 to 1, doesn't everyone?

For that I guess I'd need a nuclear fall out shelter

 

[Little Al]

Yes, why?

I want my 2 strokes to smoke. Lots when cold and just a little when warm.

Ahhhhh. Lubrication. Ahhhhh.

To make your day try Ipone Samurai Fraise (strawberry)scented or Castol or other brands of Castor bean oil "Arhhh" the scent A bit of smoke is good for when the "Mossie's are out & about

 

[paul99]

I was going to start another question about fuel mix at some point but as it's being discussed here and wouldn't derail the thread what are peoples thoughts on 2 stroke mixes in older / vintage saws?

I always used to run 40:1 in everything but after coming across references to 32:1 here and doing some extra reading I've now switched to that as I figured the bit of extra oil certainly isn't going to bankrupt me and may just put a few more years on the saws.

Then along came the old Dolmar 152 that says 25:1 on the fuel tank so that's exactly what it gets. That means two lots of fuel to mix etc. I've been wondering (and that's all its been) for a while if that old Dolmar (and a few other old 2 stroke engines) would be ok with the same 32:1 mix. I'm not dull enough to believe that everything modern is better than old but just maybe 2 stroke oils now are better than what was available in the 70s when a 25:1 mix was required? and maybe I could save that little bit of hassle having to have 2 cans with 2 different mixes any thoughts?

 

[ericm979]

Modern synthetic oil is a lot better than the generic non synthetic '70s two stroke oil that Dolmar would have expected people to use, if not straight 30 weight.

If you're using good synthetic 32:1 should be fine. I ran my vintage two stroke dirt bikes on modern synthetic oil and modern ratios with no problem.

 

[SierraMtns]

Hello this is my first post I was wondering if 40-1 mix would be bad for my 372xp and 441, I use husqvarna xp mix, i don't run them professionally I just cut a lot of 24" plus dead oak, I try to make sure they are properly tuned.

Good luck on figuring out which mix ratio to run. Once you figure that out then you need to figure out which oil....

 

[Little Al]

I was going to start another question about fuel mix at some point but as it's being discussed here and wouldn't derail the thread what are peoples thoughts on 2 stroke mixes in older / vintage saws?

I always used to run 40:1 in everything but after coming across references to 32:1 here and doing some extra reading I've now switched to that as I figured the bit of extra oil certainly isn't going to bankrupt me and may just put a few more years on the saws.

Then along came the old Dolmar 152 that says 25:1 on the fuel tank so that's exactly what it gets. That means two lots of fuel to mix etc. I've been wondering (and that's all its been) for a while if that old Dolmar (and a few other old 2 stroke engines) would be ok with the same 32:1 mix. I'm not dull enough to believe that everything modern is better than old but just maybe 2 stroke oils now are better than what was available in the 70s when a 25:1 mix was required? and maybe I could save that little bit of hassle having to have 2 cans with 2 different mixes any thoughts?

Your Dolmar & any other vintage /historic saw will be fine with the use of modern synth oil mix at 32/1 Back in the day it was use XX/1 mix if you use their (saw brand)oil & a much oilier mix if you use any body elses oil Using an FC/FD Jaso rated oil at 32/1 will keep your kit performing no problem the modern mix oil bears no resemblance to oil from back in the 70's Using an oil with a colour dye is advantagoius over fuel coloured oil as it gives a indication that the mix does in fact contain oil without alot of "Hassle"

 

[paul99]

Your Dolmar & any other vintage /historic saw will be fine with the use of modern synth oil mix at 32/1 Back in the day it was use XX/1 mix if you use their (saw brand)oil & a much oilier mix if you use any body elses oil Using an FC/FD Jaso rated oil at 32/1 will keep your kit performing no problem the modern mix oil bears no resemblance to oil from back in the 70's Using an oil with a colour dye is advantagoius over fuel coloured oil as it gives a indication that the mix does in fact contain oil without alot of "Hassle"

Thanks Al nice to know for sure. That'll save having an extra can of 25:1 mixed up

 

[jwilly]

40:1 is preferred to 50:1. I run 32:1 in everything.

I have run 32:1 for over 30 years and never a saw seize or crank go.

 

[TheTone]

I use 3.5 oz. full synthetic oil in one gallon (36.5:1) with about 1/2 oz. Seafoam. Kind of a compromise mixture, but it works well for me.

 

[Toneman]

40:1 is preferred to 50:1. I run 32:1 in everything.

Me too!!!

 

[president]

takes a lot of nerve the begin your journey into arboristsite with oil thread....you will get along just fine! welcome

funny