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.