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-   -   Tell me about oil (http://www.rcuniverse.com/forum/gas-engines-142/11670635-tell-me-about-oil.html)

Carl1211 10-09-2019 09:58 PM

Tell me about oil
Looking for recommendations on 2-cycle oil for fuel mix on Quadra and Zenoah engines. One new and one older motors. 20:1 mixtures but what brand of oil? All synthetic or a blend?


cathurga 10-10-2019 03:53 AM

can opened....worms everywhere... lol

Seriously, that debate will rage on and on and on, be prepared for a slew of arguments, suggestions, complaints, I-know-a-guy whose engine gained 500rpm just by putting an ounce of chipfat in his oil...blah blah blah.

There are many brands and some of them work better in different conditions. I use whats available in easy access, decent price....and run it at suggested spec. For me thats Stihl HP for my Saito Gassers and the same or Redline in the 2-strokes.....works for me, is available.

ahicks 10-10-2019 05:03 AM

I agree with the whatever is available at a reasonable price. My minimum is that it must be "approved for use in air cooled engines". No outboard oil for instance.

And unless you are running one of the sub 15cc baby gassers (which actually need 20:1). 32:1 mixture is plenty of oil in the bigger stuff.

The 20:1 mixture suggestions you see for these bigger engines is an old spec. It does work, but it leaves way more mess on the planes than necessary.

speedracerntrixie 10-10-2019 12:41 PM

Use enough, go fly, don't worry about small stuff.

BarracudaHockey 10-10-2019 01:12 PM

Yea, this is like throwing raw burgers into the piranha tank.

I use RedLine at 40:1 in everything including my weed wacker.

I have a Saito Radial that needs 20:1 so I have a small can for that.

daveopam 10-12-2019 12:35 PM

Stihl synthetic here. It's one of 2 suggested by DA. I figure they know and I can grab it at Ace Hardware.


BarracudaHockey 10-13-2019 04:14 AM

Not that it matters but I thought they pushed Red Line

speedracerntrixie 10-13-2019 07:20 AM

They do push Red Line but they also used to be OK with Amsoil. It makes good sense that they try to get everyone running Red Line. When engines come in for service it's good to have that base line. I used to have a DA 150 S/N 257. During its lifetime it was run on no less then 6 different brands of oil. It saw life on 4 different airplanes. I estimate that when it hit the ground it had over 2,000 flights on it. Like I said earlier, pick a brand that is easy to get, use the correct ratio and it's a non issue.

OldScaleGuy 10-15-2019 02:49 AM

A retired friend of mine built go kart racing engines for a living, he is also an RC'er. When i first started flying with gasoline engines he told me that if i used Red Line i would never have an oil related failure. That convinced me, he is an expert, so i followed his advice, i have been using Red Line at 40 : 1 for years with no issues.

BarracudaHockey 10-15-2019 05:23 AM

Yep, I use it in my lawn stuff, rc stuff, everything but my coffee maker

daveopam 10-21-2019 02:43 PM

The manual for my DA-60 mentions both.


karolh 10-26-2019 03:30 PM

I've been using Red Line mixed at 40:1 in all my engines for several years now and they seem to like it as I've never had an oil related issue.

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