what engine oil is everybody running?
 

I use to Idamisu synthetic 20W-50, just like to know what other options out there in South East area.
Thanks

Speed master

15W-50

i run mobil 1 extended life 15w-30 but i still change it every 3,000 no matter what they say it can handle.

FD #1 Mobile 1 - Change every 1 to 1.5K.
FD #2 Cheapest oil possible - Change every 1 to 1.5k
FD #3 No oil - sits in my garage

mobil 1 10w30

Mobil 1 10W 30

I though rotary engine doesn't like synthetic.

For my 94 it received regular oil since new...change every 2k.

IMO, using syn in any vehicle is not necessary. If regular oil are changed at every 2k miles they are as good as using syn.

Castrol 10W-30, changed every 1-1.5K, miles or every month, whichever comes first.

Castrol 20W-50

New oil and filter every 3,000 miles.

Motul pure Mineral 10w-30. Change every 2000KM with new Oil Filter
First time try out and till now really great results.:bigthumb:

mobil-1 filter or oem and castrol gtx 10w-30 all the time

changed every 3-4 months regardless of mileage put..

Castrol 10-30 and a wix for a V6 626

hehe i have a v6 626 for my daily driver too :)

that gets castrol gtx too lol

Valvoline VR1 Racing Oil 20w-50

Mobil 1, 10-30........I could agree with statement that regular oil is fine as long as you change it regularly, but in a rotary you get more oil contamination, and the heat from the turbo’s helps break down the oil. Synthetic holds up better to contamination (oil doesn’t break down as fast) and the high temps our rotary’s produce synthetic does a billion times better. (not trying to start a synthetic debate)Just think of the Mobil 1 commercial where they heat oil on the stove top. If I remember right it was a temp test @ 450 deg and the synthetic was only Carmel colored when the Dyno juice was tar. There was some long website about the chemical make up of oil and how it reacted in different conditions, had a good deal of data on why synthetic performs better. But there are also many top drag racers that use regular dyno juice (change it after each run sometimes) and are world champions
Ive De-railed from my original post ;)
I change my oil ever 1k, or for each trip to the track which ever happens first, Which is a bit crazy but its all about how hard you consistently drive. Just like in the owners manuals it says depending on driving conditions you may need to change more often. I run mine Hard (22psi every chance I get) so the cost for the multiple changes is cheap insurance

You "thought" WRONG


Not "necessary" for the engine, but "necessary" for the Turbo's...................

Here's some info about using Synthetic in a rotary:

I run valvoline 20w-50, change it every few months (since that's typically like 1k miles maybe).

And now to quote an article I found on the 8 forum that I'm sure will get me into a lot of trouble here, but I'm just passing along the information:

Ok here's the official scoop on the oil issue. As I said earlier, I asked the highest people on the planet when it comes to rotaries. First I'll start with Rick Engman's position as he built all of the engine's for Downing. I looked at Rick and just quite simply said, "synthetic oils". His response was, "I wouldn't use anything but synthetic oil in a rotary". Thankyou Mr. Engman! All of Downing's race cars use Valvoline synthetic. He said it doesn't matter if it is a race engine or not. I also told Mr. Engman that many people say you only use synthetics in a rotary because it gets rebult all the time and that it doesn't matter what happens to these engines. I can't post what his opinion are of these people! He did say their engines get 100 RACE hours of use between rebuilds. The Courage is using experimental engine parts that were last used in the 80's and 90's! They care more about the longevity of the engine on a race car than a street car so some people's logic is VERY flawwed.

Now onto Mazda's position on synthetics since I know that the opinion of the smartest rotary person in the U.S. isn't good enough for some people. As I stated earlier, I asked the head of rotary engine development for the past 30 years at Mazda. He designed and built the 787B engine too. In very broken english he told me that not all synthetics are created equal. some are better than others when it comes to mixing with fuel in the oil metering system. The oil metering system is the key. It is NOT with swelling seals. He said that because some oils work very well and others not as well, it is far easier to just officially say not to use them than to say which ones to use and not to. This has actually been speculated for a long time and now we know it's true. I asked which synthetic oils he does not like. the answer is very surprising. The worst synthetic oil for the rotary according to the smartest rotary engine person in the world is Mobil 1. At least Valvoline and Royal Purple are fine. Didn't get any others listed. Rick Engman did say that decades ago there was an issue with some swelling of seals with old synthetic formulations but these have long since been resolved.

Here's the link if you feel like flaming away at them, I'm just the messenger.

http://www.rx8club.com/showpost.php?...6&postcount=16

Castrol 10w-30 for most of the year, 20w50 in the middle of summer.

I change it every 2k-3k

WHAT!!! Man, I have like 10 gallons of this stuff. Who wants to buy my Mobil 1. Or trade?? J/K... but I do have like 10 gallons of this.

Nippon or Mobil 1 Filter, maybe even a WIX in a pinch. Mobil 1 10w30. Every three months like clockwork. I never accumulate 3K miles.

Good link/info cletus, i was going to post the same :)

Edgardo

I run 20-50 Synthetic, mainly for the turbo because mine is just oil cooled.

Shell Helix mineral oil 10w40 changed every month with filter.

In my Black FD, I run Redline 20W50.

In my Montego FD, I run Mobil One 10W30 daily, and Mobil One 15W50 for track events.

castrol 20-50. might go thinner for the winter though.

I'm with Damon on this. Except I do mine every 2k just because the car sits more than it is driven.

Joe

:bigthumb: Same here

castrol 20-50

Was running Mobil1 15/50. Will be changing to Mobil1 10/30 because I don't think it matters which one I use, and 10/30 is much cheaper at Costco. They they don't carry 15/50 :D

i've never been much of an oil aficionado. I just use regular castrol 10-30 or the equivalent.

Havoline 10-30 every 1.5-2k + new filter Car is all oem with 77k on the clock and counting

am i the only one using Royal Purple 15w30??? I like it a lot better than most...and i change mine atleast once a month, or 2 thousand miles

oil
 

I use amsoil 20-50.

I use Royal Purple 10w30 and Mazda OEM Filter.

Royal purple is splurging LOL

Valvaline full Syn. 20w-50
Best for hot hot reallyreally hot climate of the south

Mobil 1 10/30 every 1000 miles.
I probably use 2 quarts to flush the old oil out, but thats just me being super anal.

hmmmm.... same shit... just change your oil every 3000 miles and your engine will be happy with which ever oil you put in.... even cooking oil!!!! I never heard of someone blowing up thier motors becuase they put mobile 1.

You should change it every 1500 miles.

Been using Royal Purple 20w50 for a while now. Been pretty pleased with it. Gonna try switching to Amsoil synthetic and see if that gets my dying twins to smoke less.

Mobile Extended 10w-30

That seems like a waste of time and money. Our engines typically fail due to apex or coolant seal failure. I don't know of anyone losing an engine because of not changing the oil frequently enough. The only risk would be slightly more wear on housings, which are usually replaced at rebuild time anyway. Every 3K is plenty.

Wrong. I had my oil sent off a couple years back and the amount of gas in it was frightening. Gas dilutes the efficency and the lubricating properties of the oil.
All of the engines parts are worn down by this not just the housings. Also, when the engine is taken apart for a busted apex seal/coolant seal the parts aren't worn nearly as bad. Ask me how I know this. But hey go ahead and change your oil every 3000 miles I know better.

royal purple 10w 30, i heard idemitsu is good too (made specifically for rotaries) but i'm using the mobil 1 oil filter (exp!!!!) changed about every 1-1.5k

just wondering, when you switch how did you go about getting all the exsess standard oil out? I have a r1 (dual oil coolers) and have been wanting to switch to syn. I was just wondering how you went about it. or was it just a pain to do so. draining you cooler(s) ect.

Drain the oil like normal and add synthetic. It will be completely flushed after a couple of changes.

isnt it bad to mix syn. and non-syn?

:) Sorry, I don't believe you :D 1500 miles between oil changes is ridiculous. I put over 100K on my last street ported 13B (non turbo). I beat the crap out of that engine. When it was torn down because of worn apex seals, the rest of the engine was in very good shape. Like I said before, changing oil at 1500 miles is a waste of time and money. You may prefer to be extra cautious, but it really isn't necessary.

valvoline 20w50 racing oil. never had an oiling related problem in 7 years of using it (fd or not)