What oil is best? and what ratio?

[EFSM]

40:1 mostly. Initially tried it at 32:1 and 50:1. Ended up splitting the differance.
RA is good oil but its not magic. K2 is a little cleaner and leaves just as much residual from what I can tell.

How good is the stabilizer in K2?

 

[huskihl]

I liook at it like….if you use your equipment regularly you shouldn’t need a fuel stabilizer. If you don’t use it often enough that you require a fuel stabilizer, it doesn’t matter what kind of two-stroke oil you use as you’re not going to wear it out. I don’t know, just my thinking.

I choose to use better oils because 95% of the mixed gas I use is burned in customer saws.

 

[bwalker]

How good is the stabilizer in K2?

It doesn't have a stabilizer and frankly I don't want one.

 

[mainer_in_ak]

Some of the fuel stabilizers supposedly have Polyetheramine. Like marine stabil.

I saw two weird changes in my equipment when using marine stabil in all the fuel:

2 stroke: exauhst ports still had carbon build up, but it wasn't hard, it was the consistency of grainy bubble gum. You could almost scrape the carbon out with yer finger nail.

Once I went to startron stabilizer, the carbon build up in the exauhst port was hard as a rock again.

4 strokes: If I used too much marine stable, I would get a " blue-green stabil booger" that would develop in the fuel filter and the bottom of the carb bowls.

 

[mainer_in_ak]

Still using cheap/plain-jane Lucas 2 cycle in all my 2 strokes. Can find it at any O'Reilleys napa or autozone for $9.99 a quart. Year #3 in the saws using lucas.

Funny thing: completely overhauling an 80hp suzuki 550 2 stroke. Oil injection tank full of lucas. Just bout finished out. Compression was a little low at 7000 miles. Ring gaps sloppy, piston skirts deformed and sloppy.

Anyhow, I noticed that the throttle cable is broken! The oil injector pump side if the cable is snapped and wasn't working. I dont know how long this motor has been fed oil metered only for idle, while I full throttle the fker every day.

The bottom end is just fine. No signs of heat not a spec of blue discoloration on the rod ends. So just a routine top-end refresh.

$120 for a freaking throttle cable. As much as a forged piston.

 

[JRHAWK9]

I just use a dash of PRI-G in all my small engine's fuel.

 

[EFSM]

It doesn't have a stabilizer and frankly I don't want one.

Why? Because of how fast you use it? Or because stabilizer is displacing lubrication?

 

[EFSM]

I liook at it like….if you use your equipment regularly you shouldn’t need a fuel stabilizer. If you don’t use it often enough that you require a fuel stabilizer, it doesn’t matter what kind of two-stroke oil you use as you’re not going to wear it out. I don’t know, just my thinking.

I choose to use better oils because 95% of the mixed gas I use is burned in customer saws.

Some equipment (especially trimmers, both hedge and string, and leaf blowers) is used hard but is very much seasonal. The stabilizer in Red Armor does an excellent job with keeping fuel good for up to a year. I recently dumped some RA fuel that was at least 3 years old out of a rarely-used saw of mine. The gas wasn’t fresh by any means but it wasn’t damagingly stale or separated either.

 

[huskihl]

Some equipment (especially trimmers, both hedge and string, and leaf blowers) is used hard but is very much seasonal. The stabilizer in Red Armor does an excellent job with keeping fuel good for up to a year. I recently dumped some RA fuel that was at least 3 years old out of a rarely-used saw of mine. The gas wasn’t fresh by any means but it wasn’t damagingly stale or separated either.

I don’t have any problems with our ethanol free gas lasting a couple years if it’s sealed. Dominator in the weedwhacker and blower runs in the spring just like it did in the summer and fall. The fuel in the lawnmower and wood splitter doesn’t have any stabilizer in it unless I add my own. I guess I’ve never seen the issue

 

[pbillyi69]

i efree gas in a golf cart that is three years old without stabil in it and it runs fine. its starting to smell different but it still runs

 

[bwalker]

Why? Because of how fast you use it? Or because stabilizer is displacing lubrication?

I make sure I use it up pretty fast. If its not used in the saws my son uses it in his lawncare equipment.
Stabilizer can cause increased deposits and it just encourages guys to use nasty fuel. It also doesnt work as well as guys think, especially with ethanol fuel.
If a guy really wants he can add a bit of Stabil. It works as an anti oxidation, but will.not prevent volatility loss.

 

[bwalker]

I don’t have any problems with our ethanol free gas lasting a couple years if it’s sealed. Dominator in the weedwhacker and blower runs in the spring just like it did in the summer and fall. The fuel in the lawnmower and wood splitter doesn’t have any stabilizer in it unless I add my own. I guess I’ve never seen the issue

One thing about wster oils like Dominator or K2 is one should be aware they are not very good at protecting engines from rust during storage. Its just a property of ester oils.
A little fogging oil cures that.

 

[bwalker]

Still using cheap/plain-jane Lucas 2 cycle in all my 2 strokes. Can find it at any O'Reilleys napa or autozone for $9.99 a quart. Year #3 in the saws using lucas.

Funny thing: completely overhauling an 80hp suzuki 550 2 stroke. Oil injection tank full of lucas. Just bout finished out. Compression was a little low at 7000 miles. Ring gaps sloppy, piston skirts deformed and sloppy.

Anyhow, I noticed that the throttle cable is broken! The oil injector pump side if the cable is snapped and wasn't working. I dont know how long this motor has been fed oil metered only for idle, while I full throttle the fker every day.

The bottom end is just fine. No signs of heat not a spec of blue discoloration on the rod ends. So just a routine top-end refresh.

$120 for a freaking throttle cable. As much as a forged piston.

View attachment 485663

Be careful of those Wisecos as it pertains to warm up and skirt to wall clearance. Also looks like the crown profile is going to give you more compression.

 

[bwalker]

Still using cheap/plain-jane Lucas 2 cycle in all my 2 strokes. Can find it at any O'Reilleys napa or autozone for $9.99 a quart. Year #3 in the saws using lucas.

Funny thing: completely overhauling an 80hp suzuki 550 2 stroke. Oil injection tank full of lucas. Just bout finished out. Compression was a little low at 7000 miles. Ring gaps sloppy, piston skirts deformed and sloppy.

Anyhow, I noticed that the throttle cable is broken! The oil injector pump side if the cable is snapped and wasn't working. I dont know how long this motor has been fed oil metered only for idle, while I full throttle the fker every day.

The bottom end is just fine. No signs of heat not a spec of blue discoloration on the rod ends. So just a routine top-end refresh.

$120 for a freaking throttle cable. As much as a forged piston.

View attachment 485663

O'Reilly also sells Mystik Sea and Snow, which is a better oil than Lucas and cheaper to boot. It runs $35 a gallon.
This is the same oil as Citgo Sea and Snow. Its FD rated snd I have used dozens of gallons of the stuff in sleds with great results.

https://www.oreillyauto.com/detail/c/jt-4/mystik-jt-4-full-synthetic-motor-oil-1-gallon/mys1/jt4snow1