Gas & Oil Mix for all you Dolmar Guys

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wayne s

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I have a question for all you Dolmar guys. Reading my owners manual I see that is says if you use Dolmar two stroke oil to mix at a ratio of 50:1. If you use other brand oils to use a 40:1 mix. Do any of you guys do this? I normally use Stihl two stroke oil at 50:1 mix because the dealer where I bought the saw doesn't sell Dolmar.

Thanks for you comments.

Wayne
 
Use the Stihl oil at 50:1. The same goes for Husky oil, or Red Max, Jonsered, Echo, Solo, or Dolmar oils, even though a lot of them essentially say the same thing on the back of their respective containers. I feel that the top branded oils, that are each blended to the OEM's specs, are pretty much interchangable.

What I would stay away from, at any ratio, are the generic labeled oils found in hardware and box stores. Some of them may be OK, but you just never know what you are getting. And it is probably those oils that the saw manufacturers are suggesting be mixed differently.

The guy here who really knows his oils is my friend/antagonist Ben Walker. If he picks up this thread, he'll explain it pretty good.
 
Use the Stihl oil at 50:1. The same goes for Husky oil, or Red Max, Jonsered, Echo, Solo, or Dolmar oils, even though a lot of them essentially say the same thing on the back of their respective containers. I feel that the top branded oils, that are each blended to the OEM's specs, are pretty much interchangable.

What I would stay away from, at any ratio, are the generic labeled oils found in hardware and box stores. Some of them may be OK, but you just never know what you are getting. And it is probably those oils that the saw manufacturers are suggesting be mixed differently.

The guy here who really knows his oils is my friend/antagonist Ben Walker. If he picks up this thread, he'll explain it pretty good.

What he said.

Some saw manufacturers, interestingly enough, are so worried about you using inferior off-brand oil that they specify 50:1 for their oil and 25:1 for anything else!
 
I'll get blasted for this but oh well.

I run Opti-2 in all my equipment. Small package at 70:1 or 100:1 in the big bottle. Either way, I like the performance of the oil and the way the saws run. IMHO it doesn't matter if you run 40:1 or 50:1 regular oil. 100:1 oil has never caused a problem in our shop nor have I ever heard of a piece of equipment fail due to Opti-2 oil. In 14 years.

So yeah. High quality oil @ 50:1 is your best bet if you are squeemish and don't want to run the HP stuff.
 
bump_r: if you EVER go to J. Oostendorp's place, TAKE YOUR OWN FUEL!!!
 
bump_r: if you EVER go to J. Oostendorp's place, TAKE YOUR OWN FUEL!!!

If my fuel burns up your saw, or damages it in any way that isn't the customer's fault ie. old fuel, improper mixture AFTER the sale or service. I'll gladly buy you a new saw.

This being said, I've never had to replace any equipment. EVER. 14 years and no failures says a lot in my book.

Opinions on fuel/oil mix are the same as everything else. Everyone is entitled to an opinion however misguided it may be. opinions are like azzholes is the popular saying. I think it rings true in many cases.

I've said my part on this topic. The thing is, the Dolmar distributor is also the Opti distributor and they recomend using Opti in all equipment when the oil is mixed per the OIL MANUFACTURER'S instructions of course. I'll discontinue using the product when it either fails to out perform all the other products available to me or I have a failure due to the oil. Until then, I'll continue to use the best product available to me that has proved itself over the years.
 
Opinions on fuel/oil mix are the same as everything else. Everyone is entitled to an opinion however misguided it may be. opinions are like azzholes is the popular saying. I think it rings true in many cases.
Oppinions are like azzholes only because most people are too lazy to spend any time/effort formulating theirs..
 
My guess is the Dolmar oil is either full sythetic or semi synthetic and they figure in the chance you use another oil it maybe of standard base stocks and hence 40:1.

I had a a fellow sawyer stop by and dropped off some Amsoil 100:1 and said to try it. He must have been listening to some salemen. I said no thanks! I do not have any lubrication related issues and am not looking for any.

For the record I am using Castrol. I have tried some Echo semi syn. but frown on the Echo oil as it is made by Citgo.

I have also used Opti, Phillips and Mac with favorable results.
 
i was using 50:1 sthil or husky which ever i was closest to at the time of purchase, i had 3 saw failure in 14 months I was all so using 79 oct.

I had a talk with ed H. :bowdown: he advised me to drop down to 40:1 and bump up to 81 oct. Have had no problems since. it was a weird year for saws.

Lawmart

playsafe
 
i was using 50:1 sthil or husky which ever i was closest to at the time of purchase, i had 3 saw failure in 14 months I was all so using 79 oct.

I had a talk with ed H. :bowdown: he advised me to drop down to 40:1 and bump up to 81 oct. Have had no problems since. it was a weird year for saws.

Lawmart

playsafe

Your mix ratio was ok, your gas wasnt... all the modern saws NEED 98oct gas ...
 
The Dolmar 5100S manual, page 22, requires a minimum octane of 91 ROZ. Not knowing the ROZ rating method, I looked it up on Google. Rating methods get technical, fast. 91 ROZ appears to be equivalent to our 87 octane regular gas. So, I've been using regular gas, with apparent success. Is there a reason why I should use premium fuel?
 

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