Josey Wales

My Feedback: (61)

I found a local shop that is now going to carry Motul oil..[sm=thumbup.gif]I was looking at their website and there are a few different blends of 800:

800 2t
800 2t pro racing premix
800 2t offroad

Which is the one I should be using? Im guessing the pro racing premix? I want to be able to mix it between 50:1 and 80:1..this would be for 2 DA 50's (well broken in)

Bob Laine

My Feedback: (91)

Hey Josey......This is a new oil to me. Is it synthetic, or petroleum based? Bob

Josey Wales

My Feedback: (61)

Bob..its synthetic..

only a few weeks ago the only oil I could find locally was Pennzoil air-cooled..Ive been using Amsoil and am just about out and I wanted to find a local supply..now get this--my local shop NOW sells Motul, BelRay, and Mobil 2T!! [8D] Ive been running the Amsoil at 80:1 and wanted to try something at 50:1...now I have too many to pick from!!

Bob Laine

My Feedback: (91)

Josey, That's the way things always seem to work out. I've never been able to make myself use synthetic oil yet. I've alway just used Pennzoil, "Air Cooled" since the day I bought my 1st 3W engine, and that's what they recommended at that time. (after initial break-in with ashless) Never had a problem with it, and it runs clean enough for me. Now 3W, recommends synthetic oil.....Go figure. Guess I just dwell in the past to much. Good luck with the new oil.

Tired Old Man

My Feedback: (1)

Josey,

I don't have a clue which Motul 800 I've been using and there's not much chance I'll be able to check for awhile yet. I am reasonably certain that it is a racing formula, though. Any of the oils you noted work well at various ratious ratios.

As a side note, we have been forced to quit using a certain r/c engine manufacturers blend of oil at a 50-1 ratio due to extremely high engine wear and numerous engine failures. The company I work for made a switch to Bel Ray after performing comparison tests with what you have been using and the new oil. Bear in mind that we run our engines in an extreme enviornment for very long periods of time, and that in the lighter uses that encompass R/C there may not be any issues with any of the oils.

Bob Laine

My Feedback: (91)

Silversurfer,

I hope you're not referring to the oilI use, (Pennzoil) @50-1. If it is, Please PM me and let me know. I've had no problem for three years, but if there is something adverse with the oil, I'd like to know. Thanks, Bob

Tired Old Man

My Feedback: (1)

No worry, that's not the one. For some reason the PM button is blocked where I'm at right now.

Bob Laine

My Feedback: (91)

That's a relief. Thanks!

Flip and Fly

I am using the Motol 800 "Factory Line" 2T premix only. I did not know that there was others.
Have been mixing it at 40-1 for my ZDZ 80 rv and it works fine for me. Also mixing it at 60-1 for my Brison 2.4. It will fowl plugs at 40-1, hmmm? Works well at 60-1 in that.

Tired Old Man

My Feedback: (1)

The Brison engines do not like fuel mixes with an oil ratio of much more that 1 part in 60. Remember that a 60-1 mix has less oil in it than a 40-1, right? They will most certainly foul plugs at mix ratios of 32 up to 50-1 or so. There will be those that will debate that and say the mixture adjustment will eliminate the issue, but actually owning a fw Brison engines will prove otherwise.

Cappy69

Been using the Mobil1 (used to be MX2T...now it's Synthetic 2T) from the start in my Brison 3.2 mixed 80:1. Has 30 gallons or more through it. Took the motor apart just a few weeks ago. Considering the amount of fuel through it and how hard I fly it....it was immaculate on the inside. VERY minimal carbonization, and what was there took no effort to remove. I've seen motors look worse on the inside with only 4-5 gallons used. I was suprised.....needless to say, I'm sticking with the Mobil1.


Cap

RysiuM

My Feedback: (1)

How often does this fouling happen? I mean how many gallons of fuel mixed 1:40 do I need to run to get the first problem? First half gallon I run through my Brison 2.4 had 3% oil (1:33) and now I run it at 2.5% (1:40). When will my engine miss for the first time?

BTW I'm running Motul 800 on my both engines: Brison 2.4 and MVVS 1.6 with the same ratio 1:40. So far no problems at all.

Cappy69

No definate answer there. The only way to know for sure is to periodically pull your plug and inspect it.....when it looks bad, you'll have your answer. I do know that Brison recommends 80:1 w/ high quality synthetic...no reason to use any more oil than necessary. Not to mention that high oil content can cause other problems like rings sticking....which is always a bad thing. If a motor manufacturer says to use ratio XX:1.....don't second guess them...they made the motor, so they will know best. As I'm sure you know, this whole oil thing is always up for debate...this is just my experience and opinion.


Cap

Tired Old Man

My Feedback: (1)

Thanks Cappy, you said it well. When the engine starts missing or gets hard to start you'll know something's up. The first place to look will be at the business end of the plug.

I used to second guess the manufacturer and run the mixes richer in oil but found repeatedly that the plugs would foul relatively early. On another engine that used to be run at 40-1 I still have to tear it down and free the ring up one of these days. A sudden loss of compression is a good indicator of a stuck ring.

Flip and Fly

I was running my Brison at 40-1 because I would run my ZDZ 80 at that ratio. The ZDZ likes it like that

Not the Brison, no harm done it just gets hard to start after a gallon or so. The carb has been modified by the folks at Brison to smooth out the midrange, or so I was told. So it loads up if the mix is too rich. 60-1 has been good for me.