Hello To Everyone :)
12-11-2003 | 07:49 PM
#1
Thread Starter
Junior Member
Joined: Dec 2003
Posts: 0
I've always been intrigued with Rotary engines (How the hell did Felix Wankel ever think up of something like this), so I thought id join up (Even though I own a WRX). So Hi 
I actually have a question about motor oils used in Mazda Rotary engines, why is it you cannot use a fully synthetic motor oil in a Rotary engine, and is it really true that its not worth rebuilding a Rotary engine if its shot?
I actually have a question about motor oils used in Mazda Rotary engines, why is it you cannot use a fully synthetic motor oil in a Rotary engine, and is it really true that its not worth rebuilding a Rotary engine if its shot?
12-11-2003 | 07:52 PM
#2
Senior Member
Joined: Nov 2001
Posts: 4,981
From: NJ
rotary engines burn a small amount of oil on purpose, to help lubricate the seals. synthetic oil turns nasty when it burns, not good for the engine.
the engine can be rebuilt, depending upon what got damaged determines what parts get replaced, and what gets re-used, same as a piston engine
the engine can be rebuilt, depending upon what got damaged determines what parts get replaced, and what gets re-used, same as a piston engine
12-11-2003 | 07:55 PM
#3
Senior Member
Joined: Jun 2002
Posts: 354
From: PA
...actually recent research shows that you CAN use synthetic and it's all a big myth that you can't. Pretty sure Racing Beat puts synthetic in all their engines and recommends it on their site. If you can't believe them...who do ya believe? Also, I think this is a repost...there's been a huge discussion about this on one of the 7 sites if not this one.
12-11-2003 | 08:00 PM
#4
Senior Member
Joined: Dec 2001
Posts: 2,934
From: Jensen Beach, FL / Sylva, NC
I am running Amsoil Synthetic 20W50 Racing oil in my car. I have taken out the oil injectors and use Pettits Protek premix.
You can run Synthetic in your rotary. Do a search abd you will find a whole thread on it. I think 9BASE3 started a thread a while back about it.
You can run Synthetic in your rotary. Do a search abd you will find a whole thread on it. I think 9BASE3 started a thread a while back about it.
12-11-2003 | 10:55 PM
#7
Senior Member
Joined: Dec 2002
Posts: 4,107
From: fredneck MD
Originally Posted by Eric Happy Meal' date='Dec 11 2003, 11:44 PM
i thought they say you cant use it was because mobil wsa the only company making synthetic and they had some disagreement or something like that.
I run mobil 1 in my modded FD. It did make the engine smoother, but synthetic opens up more leaks.
12-12-2003 | 12:24 AM
#8
to infinity & beyond, me
Joined: Aug 2001
Posts: 5,124
From: santurce
well for whatever the reason, when u get a flyer about your rx7 from the dealer that says "do not use synthetic oil", i dunno about you guys, but id go with what the maker of the car is telling me...
