What oil is best? and what ratio?

[Terry Hennessy]

I run all my saws at 32:1

and what do your screen, spark plug and piston top look like?

 

[Moparmyway]

and what do your screen, spark plug and piston top look like?

25:1View attachment 2372

 

[Terry Hennessy]

Fact is (I suspect) old equipment running 16:1 designed with very loose tolerances, and the 16:1 was 30w oil tryin to get a piston ring to give some compression, LOL. Modern 2-cycle synthetic oil is a tremendous improvement. I recall the 3-cylinder 2-cycle Saab I worked on as a teen, owner manual said add a quart of 30w engine oil to every tank of gas. The exhaust smoke was rather disturbing.

 

[mdavlee]

I don't have any build up on the screens in my mufflers. I don't even use the ratio rite if the jug has markings on the side. 4 oz give or take a tiny bit is close enough.

 

[DexterDay]

and what do your screen, spark plug and piston top look like?

No build up on screens.. If tuned right and ran right? There is no issue. Actually, because of the added oil, I see less carbon.

My 460 is at a friends house and has the most run time of any saw I have. It's been ported for 2 years and the exhaust port is still shiny and always has thin film of oil on it. I'll be picking it up tomorrow and my 261C. I'll try to post pics of the screens, internal muff pics, and exhaust port pics.

Even on a stock saw, I think 50:1 is pushing it. Will it run for years? Yes.. But..... Do crank bearings, rings, wrist pin bearings, and the cylinder walls of your saw like oil? Yes... He ll yes..

 

[Redbull661]

From my testing... I just think 50:1 runs too dry. I know guys run the piss out of saws at 50:1. But they usually get a season or two out of them. I would bet money that they would get a lot more run time out of the saw, simply switching to 40:1...with just about even the cheapest of 2 cycle oil.

and what is the big savings? Figure your buy 1 quart of 2t oil for say $12.

So per 100 Gallons of gas that you run -

@ 50:1 you need - 8 quarts of oil = 8qt x $12 = $96

@ 40:1 you need 10 quarts of oil = 10qt x $12 = $120

so per 100 gallons of gas it costs you $24 more dollars to run 40:1.

When you consider the cost of a saw. The cost of lost time with that much more parts breakage due to 50:1. $24 per 100 gallons of gas run...SO WHAT...cheap insurance!

I mean seriously. That is 24 cents per gal of gas used. .24 effin cents people!

There are sooo many other ways one could save money!

I just shake my head.

 

[jake wells]

16:1 - 40:1 if tuned right you wont see anymore carbon buildup you will actually see less if tuned a little fat so it four strokes out of the wood and cleans up in the wood
the extra mix entering the combustion chamber will was wash the crown,rings,exhaust port and keep carbon to a minimum.
most carbon buildup is from fuel not oil and improper tuneand tuning with a tach is a no no.

 

[mdavlee]

I wish the dumonde wasn't so expensive. Clean burning and great lube with no offensive smell.

 

[jake wells]

I wish the dumonde wasn't so expensive. Clean burning and great lube with no offensive smell.

try some of this mix at 32:1

 

[DexterDay]

try some of this mix at 32:1
View attachment 2478

 

[jake wells]

 

[Terry Hennessy]

KLOTZ is the only one (shown above) that says "synthetic"; I will never go back to plain petro-based, and all those others look to me like antique petroleums. What I want to see on the LABEL is the TEST RATING numbers. Personally, I run Echo Power Blend synthetic, with the logic that any MFR that would give a 5-year consumer warranty when no others were believes in their oil; ECHO also says you can run all their vintage equipment, even those that called for 16:1 on the Power Blend (synthetic) mixed at 50:1 I AM PRETTY SURE THE ECHO 32:1 IS NO LONGER ON THE MARKET. I have been using the Power Blend about 4-5 yrs now. Redline synthetic oil website (REDLINEOIL.COM) has some excellent papers/ literature explaining oils, testing and what happens. Basically, it comes down to "at what temperature does oil change from a lube to a goop/ glue/ sludge?" You can ask the same question about cooking/ frying oils, and find their various temp ratings, flash points, smoke points on the internet.

 

[jake wells]

Klotz runs like crap in my auto tune so i dont use it.

 

[Terry Hennessy]

I had never heard of Redline oil until 2-3 yrs ago, but ran into a guy at a model airplane field w/ a plane w 9-ft wingspan, said his engine about $3k; (if I recall right) he said the engine MFR confirmed to him in writing that they would warranty his engine if he used redline synthetic in his 2-cycle mix.

LINK to a good article, if anyone has an interest:
http://www.redlineoil.com/content/files/tech/Two-Stroke Technical Info.pdf

 

[Terry Hennessy]

Klotz runs like crap in my auto tune so i dont use it.

Did you run 50:1 when auto-tune under warranty? Otherwise, you voided warranty?

 

[Terry Hennessy]

My jred 625 bearings looked like that too. TCW3 for 20 years. They were still good though

ALERT: (I could be wrong/ confused but) TCW3 is a Marine Oil (thus the "W" in the rating) for cooler running (marine, water cooled) 2-cycles, and should never be used in an air-cooled engine. Check your Jred Book, bet it says NEVER USE...TCW

 

[huskihl]

ALERT: (I could be wrong/ confused but) TCW3 is a Marine Oil (thus the "W" in the rating) for cooler running 2-cycles, and should never be used in an air-cooled engine. Check your Jred Book, bet it says NEVER USE...TCW

Yep

 

[mdavlee]

Did you run 50:1 when auto-tune under warranty? Otherwise, you voided warranty?

50:1 in these new stratos that use way less fuel is getting way less oil. The 550 didn't like motul 800 at 32:1. It wasn't getting hot enough to burn it. Still had spooge coming out of the muffler outlet. Maxima K2 ran clean in it at 32:1.

 

[Moparmyway]

Here are two more ...........both with 25:1 and running VP SEF

 

[Terry Hennessy]

Klotz runs like crap in my auto tune so i dont use it.

I do recall when my son had lawnmower trouble and brought to me to look at and I told him he had water in the gas & gas tank. His response was "...but I just bought the gas today...", to which I responded, "and you have water in the gas..., so let me show you how to see/ detect and remove the water by putting it in a jar..."