2-stroke mix for a 6401

[Beetle-Kill]

Just got home with the new 6401. Actually reading the manual, and I come across this- 50:1 if using Makita oil, 40:1 when using other oils. Why?

 

[TreePointer]

Because Makita likes to give the impression that their oil is sooo much better than the others.

Any modern 2-cycle chainsaw oil from a saw maker (Stihl, Husqvarna, Dolmar, Echo) should give you no problems at 50:1. Use full synthetic and you'll notice cleaner parts when you finally have to tear down the engine.

 

[Beetle-Kill]

Thanks. I've got a bunch of Stihl HP Ultra, sounds like I'll be good to go. I don't anticipate a tear down anytime soon. JB

 

[Danno77]

yep, what he said. just do whatever. i'd do 40:1 probably. On my older Stihl I like to use 25:1, keeps the mosquitoes away, and that way it uses the same thing as my cheap china saw.

 

[atvdave]

Keep in mind... Check your spark plug color... less than 50:1 will lean out your fuel to air mix.. If running 40:1 or less you may need to richen up your carb...

 

[Bigg_Redd]

Just got home with the new 6401. Actually reading the manual, and I come across this- 50:1 if using Makita oil, 40:1 when using other oils. Why?

50:1 with any premix oil will be fine. I've never heard of anyone smoking a piston due to burning 50:1 premix.

I burn 40:1 simply because I mix 5 gallons at a time and it makes the math easier (one pint in a 5 gallon can).

 

[Danno77]

Keep in mind... Check your spark plug color... less than 50:1 will lean out your fuel to air mix.. If running 40:1 or less you may need to richen up your carb...

+1 to this. I had to tweek mine just a hair when I went with a different mix. Got tired of dealing with multiple gas cans of different mixes. Now I only have two.

 

[smokinj]

Milling I run 40:1 and cross cutting 50:1 stihl ultra but may change do to price.

 

[Danno77]

Milling I run 40:1 and cross cutting 50:1 stihl ultra but may change do to price.

change from Stihl ultra? or change ratios? I have just been using generic synthetic and am happy with that. You saw a LOT more than I do, though.

 

[TreePointer]

For me, it makes sense to stick with Stihl Ultra. In addition to my saws, I also run two Stihl 4-mix trimmers. The 4-mix engines really do need Ultra to keep them from gumming up (it's not just a marketing gimmick).

 

[HittinSteel]

Milling I run 40:1 and cross cutting 50:1 stihl ultra but may change do to price.

Word is Woodland Pro from Baileys is made by the same factory as Dolmar and Echo.....it's what I'm using now.

 

[smokinj]

Milling I run 40:1 and cross cutting 50:1 stihl ultra but may change do to price.

Word is Woodland Pro from Baileys is made by the same factory as Dolmar and Echo.....it's what I'm using now.

Glad to hear I am all in! Cant justify stihl anymore with a 42oz tank.

 

[Singed Eyebrows]

Wacker Corp did some 2 cycle oil testing years ago & gradually leaned out the oil till the mix was 200 to 1. There were no failures & no piston scuffing. They then straight gassed the engine & it seized very quickly. They also said at that time there were 2 or 3 2 cycle oil manufacturers in the US & everybody had their own dye & labels, Randy

 

[Beetle-Kill]

That's interesting. Do you have a link to that testing? I'm curious about the 34:1- to 50:1 variation, if any.

 

[Singed Eyebrows]

No, This is just a service manager of a large rental fleet who was involved with the Wacker testing, telling me this about 12 years ago. 2 cycle engines haven't changed much so results should still be valid, Randy

 

[Beetle-Kill]

No sweat, I was curious if my 011 would be OK with 50:1, just would make it easier on mixing. My 346 and 6401 should be OK. Thanks, JB

 

[HittinSteel]

All saws are fine with a good quality modern two stroke oil at 50:1, although I run about 45:1 and a little seafoam. Anything richer than 40:1 and the carbon deposits will become evident.

 

[HittinSteel]

Milling I run 40:1 and cross cutting 50:1 stihl ultra but may change do to price.

Word is Woodland Pro from Baileys is made by the same factory as Dolmar and Echo.....it's what I'm using now.

Glad to hear I am all in! Cant justify stihl anymore with a 42oz tank.

Yeah I was gonna strain a bottle of Ultra, gotta be gold or diamond flakes in there.

 

[smokinj]

Milling I run 40:1 and cross cutting 50:1 stihl ultra but may change do to price.

Word is Woodland Pro from Baileys is made by the same factory as Dolmar and Echo.....it's what I'm using now.

Glad to hear I am all in! Cant justify stihl anymore with a 42oz tank.

Yeah I was gonna strain a bottle of Ultra, gotta be gold or diamond flakes in there.

Make me sick evertime I am on my las couple bottles. 14 inch .043 chain and a 6 pack was over 35.00! Use to order from Baileys a lot. Need some more milling chains now to.

 

[smokinj]

Milling I run 40:1 and cross cutting 50:1 stihl ultra but may change do to price.

change from Stihl ultra? or change ratios? I have just been using generic synthetic and am happy with that. You saw a LOT more than I do, though.

Brands ratios are good. lol Stihl is way to much.

 

[HittinSteel]

The key with Bailey's is placing big orders....... wanted to buy a set of their piston ring compressors for $7.99....... shipping was $8.99. I don't think so.