Auto-RX in rotary/"Wankel" engines?

[raynorway]

Hi all,
do anyone have any experience with using Auto-RX in rotary/"Wankel" engines like the Mazda RX-series?

I guess it will work okay, but these engines are quite differntly built than traditional "bangers" and also have oil injected directly into the rotary chambers. Some of this oil will burn/combust, and if it contains ARX - what will happen? They also use special seals on the pistons as far as I know.

 

[Quest]

http://www.bobistheoilguy.com/forums/ubb...527#Post1176527

 

[gtx510]

Originally Posted By: raynorway
Hi all,
do anyone have any experience with using Auto-RX in rotary/"Wankel" engines like the Mazda RX-series?

I guess it will work okay, but these engines are quite differntly built than traditional "bangers" and also have oil injected directly into the rotary chambers. Some of this oil will burn/combust, and if it contains ARX - what will happen? They also use special seals on the pistons as far as I know.
Pistons?
There's rubber oil control rings in that sit in the ROTORS

How's ARX burn?
Could it remove carbon deposits in a combustion chamber?

I wonder if some FP60 or FP+ in the gas would help with the carbon deposits.
LC20 "molasoak"?
And I wonder if Dexelia (or Idemitsu rotary) oil is lower in additives so that is produces less deposits when burned.

 

[Quest]

Originally Posted By: gtx510
Originally Posted By: raynorway
Pistons?
There's rubber oil control rings in that sit in the ROTORS

How's ARX burn?
Could it remove carbon deposits in a combustion chamber?

I wonder if some FP60 or FP+ in the gas would help with the carbon deposits.
LC20 "molasoak"?
And I wonder if Dexelia (or Idemitsu rotary) oil is lower in additives so that is produces less deposits when burned.


No, this is not a matter of AutoRx works in this case or not, more like "how can the engine burns oil(to lubricate the apex seals) w/o wearing out, and still be able to burn clean w/o forming carbon deposits at the exhaust port. AutoRx uses motor oil as a carrier to get into any oil-related nooks-n-crannies to clean out the deposits, and will try to keep them clean if you do maintenance dose. However, in the case of rotary (wenkel engine), carbon formed at the exhaust port (post-combustion process) and this is when all the oil-products gets burned, combusted and spent during the process.

While I do not see harm using FP60 or similar in gas to help keep the exhaust ports clean, truth is, why? Can you just use motor oil that is specifically blended for rotary engine only (no, I'm not referring any regular blend designated for use in 4-cycle reciprocating engines).

Simply look at this engine as a massive 2-cycle oil-burning engine (and get some Dexelia to keep your hobby running clean and at it's optimal condition) and be over with it.

Q.

 

[gtx510]

w-A-n-k-e-l

Ever taken apart a rotary engine?? it not the eahaust ports...
The problem is carbon forming in the rotor housings. It will line the housing and get behind the apex and side seals which locks up the springs, causes clatter and poor seal.

Doesn't ARX work by bonding to carbon, "softening" it, and then it needs clean old to help rinse the carbon off? It "washes away" carbon?
How's it going to clean the chamber/rotor housing if it's getting burnt?
What kind of deposits would a lanolin ester leave when burnt?

Doesn't FP60 help to clean a combustion chamber?? hmmm....

Where do they sell Dexelia in the US? Mazda dealer?