"We only use castrol GTX in rotaries." " It does not matter if the engine is old, rebuilt or new, using synthetic in a rotary will KILL YOUR MOTOR." Wondering what do you boys think about that? -nate

 

i think i agree with the first part, no comment on the second

mike

 

Using synthetic in a rotary is fine, search and you will find many threads on this topic.. it has been discussed in great detail in the recent past.

Matt

 

there would be a lot mroe blown motors if that were a true statement.

 

where is quote taken from?

 

Damn...I wished I knew that 40K miles ago when I switched to Mobil1. That means with all this hard driving, I might blow my engine now that it's at 60K!!! Sheet!

 

I called and asked their mechanics.

 

Here's a good thread about it:

https://www.rx7club.com/forum/showth...threadid=23430

 

Try reading the same text from the Racing Beat technical manual. They say they've never seen any damage caused by synthetic oil in their over 20 years experience.

 

thats agood point. it doesn't matter what oil you have in it, if the water seals go first....

mike

 

I'm already sold on using synthetic. I read that whole article from gmonsen, which got me to use it.

Little tid bit here: In the new SCC, theres a pic of a FD thats for sale in Japan, if you look carefully the card infront of it gives it's stats. And it says it only uses synthetic.

 

They only have one mechanic - John. Well actually, there is another but he only does their race cars.

They have that posted on their FAQ page. I think it's a liablity issue for one and and old habits for another.

Pettit and Tri-Point which currently "still" race professionaly both use synthetic oil. I think we are all dying to find out what Mazda recomends for the RX-8.

 

 

Actually Pettit uses dino in their race vehicles. None the less, I use synthetic and have so for 45K miles and I'm still on the original engine, in the S. Florida heat, making 340 at the rear wheels with a stock sequential setup and bolt on parts. I'd take Racing Beat's experience over Mazdatrix's any day.

 

haha, maybe it was uncalled for, but i've always wanted to use that.

 

So what? That's no more clout than Billy Bob saying he only drinks Budweiser because it's the best.

 

Crap! I bought beer on his recommendation for years! Isn't Bud the best?
:-)
Michel

 

Regardless of what the guy on the other end of the line may have SAID in haste, here is Mazdatrix's official response to this oft-asked question:

http://www.mazdatrix.com/faq/synthetc.htm

 

Their official answer seems pretty diplomatic. They keep saying how they only use *good* petroleum based oils, and say that *some* synthetics don't burn clean (bad). Well heck, not all non-synthetics burn clean either. So basically, what they're saying is that good petroleum oils - good. Bad synthetics, bad. Well, crap, who didn't know that? They never made a comparison between good petroleums and good synthetics and in the end say they aren't willing to, so I'd figure it's still up to you and the experiences of other members.

 

well, 93rxseven, who has done the tests on good versus bad petroleums and synthetics? i do agree with your point, but like damonB said, isnt it someones opinion over anothers? id rather just use what i get for free, but thats my opinion. i used to never use penzoil because *someone* told me that it fu*ked up your engine somehow. so i used castrol until my former employer, jiffy lube, decided not to carry Castrol 20/50 and the only thing left, that was not synthetic, was penzoil. so in turn, i went with the free one that the, unmentioned, certain someone, could never PROVE that penzoil messed up anybodies engine.

so who is to say which is better?

 

oh yeah, the only reason i diddnt use synthetic in my rotary was because the guy who built my engine told me not too for the same reasons that mazdatrix gave, and i doubt he ever read anything about it from mazda either cuz his profession is rebuilding airplane motors that happen to also be rotary, and if PILOTS shouldnt use synthetic, why should i?

 

Budweiser IS the best.

 

i know meddle, maybe next time im in STL ill look you up for a and a senic drive.

 

When I first bought my FD...I didn't know any better...so I'd used Synthetic Oil(Mobil1) for a few of oil changes and it work fine....just thought I throw in my exprience...peace!!!

 

drive an import car and drink an import beer...

my two sense