Switched to Synthetic today
Senior Member
Joined: Nov 2001
Posts: 7,316
From: Bay Area, CA
Originally Posted by Fd3BOOST' date='Sep 7 2002, 10:57 AM
[quote name='13BAce' date='Sep 7 2002, 09:53 AM'][quote name='Shane.Trammell' date='Sep 6 2002, 07:07 PM']they say no synthetic for the rotaries. they said if you put it in there the extreme heat that is produced by a rotary engine will turn it to a thick, liquid plastic kind of stuff that will eventually clog the ports and youll have to get the engine rebuilt. actually this whole thing is just made up but they do say that you shouldnt use syn
Agreed![/quote]
Somebody finally agrees with me.
Senior Member
Joined: Feb 2002
Posts: 857
From: Massachusetts
Yeah synthetic is good until you clog the omp and lines and injectors with it. That's what I hear though. I'm unsure if that is a proven fact. Good luck, I hope it doesn't cost you an engine. I think I'll stay with my Valvoline 20w-50.
Senior Member
Joined: Nov 2001
Posts: 7,316
From: Bay Area, CA
Originally Posted by 7mech' date='Sep 7 2002, 02:31 PM
Yeah synthetic is good until you clog the omp and lines and injectors with it. That's what I hear though. I'm unsure if that is a proven fact. Good luck, I hope it doesn't cost you an engine. I think I'll stay with my Valvoline 20w-50.
Thread Starter
Senior Member
Joined: Feb 2002
Posts: 6,331
From: Frederick MD
Originally Posted by 13BAce' date='Sep 8 2002, 11:38 AM
[quote name='7mech' date='Sep 7 2002, 02:31 PM']Yeah synthetic is good until you clog the omp and lines and injectors with it. That's what I hear though. I'm unsure if that is a proven fact. Good luck, I hope it doesn't cost you an engine. I think I'll stay with my Valvoline 20w-50.
Seeing as how the OMP injects oil from probably the coolest part of the engine, I can't see how it would get clogged. (I think the only way oil gets clumpy is when it burns) Now, I do understand that some people argue that it may leave deposits on the rotor faces, as it doesnt "burn" as well as dino oil... However, synth has supposedly come a long way, and in some cases, may burn off even better than dino... I guess we'll see! Car still runs as of now!
Senior Member
Joined: Feb 2002
Posts: 857
From: Massachusetts
Hey like I said that's what I've been told. from what I've because it doesn't burn so well it tends to turn into a gel like substance. When this happens it will leave clumps of the jellied substance in the omp lines when the car is turned off. Then because of the cool down process it will harden and clog the lines. But like I said this is just what I've been told. Sorry in advance if I'm wrong. Just be careful and do your research(not saying you haven't) first.
Thread Starter
Senior Member
Joined: Feb 2002
Posts: 6,331
From: Frederick MD
Originally Posted by 7mech' date='Sep 8 2002, 10:30 PM
Hey like I said that's what I've been told. from what I've because it doesn't burn so well it tends to turn into a gel like substance. When this happens it will leave clumps of the jellied substance in the omp lines when the car is turned off. Then because of the cool down process it will harden and clog the lines. But like I said this is just what I've been told. Sorry in advance if I'm wrong. Just be careful and do your research(not saying you haven't) first.
P.S.
Still running good. 4 days now I think!
Senior Member
Joined: Dec 2001
Posts: 993
From: Panama City Beach, Florida
Ya, its true most of the top tuners use synthetic oil, in their race cars... syn breaks in faster, is less weight, and more vicous, but a race motor isn't meant to truly last that long...
It might be good for a while, but i'll stick with the "dino" oil, its been recommended by too many people not to use synthetic, i'll just go with what works... let me know if problems do arise..
It might be good for a while, but i'll stick with the "dino" oil, its been recommended by too many people not to use synthetic, i'll just go with what works... let me know if problems do arise..
Senior Member
Joined: Oct 2001
Posts: 368
From: Westminster, MD
I know this debate is ongoing, so a few months ago I asked Mobil and here is the response I got.
quote:
--------------------------------------------------------------------------------
> Thank you for your inquiry.
> Mazda doesn't recommend synthetic engine oils
> in general for their rotary engines, experience and testing show that Mobil
> 1 provides superior performance in rotary engines.
>
> Technical Support Engineer (WJF)
>
> The above information is provided in good faith based upon the information
> presented by the customer. ExxonMobil is not responsible for any loss or
> damage resulting from inaccuracies or errors in any of the information
> provided or any acts or omissions taken in response to our advice.
>
> Exxon Technical Support: Mobil Technical Support:
> 1-800-44Exxon Prompt #3 1-800-Mobil25 Prompt #3
> (1-800-443-9966) (1-800-662-4525)
>
>
>
> ----- Message from ursnoozin@aol.com on Tue, 25 Jun 2002 17:00:03 +0000
> (GMT) -----
>
> To: mobilproducts@ourdataworks.com
>
> Subject: Mobil1 product Technical
> question
>
>
> I have a Mazda rotory motor (13B, N/A) in my MG Midget. The car is used
> for auto-xing, track days and some trips to the ice cream stand
>
> I want to know if I can use Mobil 1 10W-30 in my motor since it injects
> some of the oil into the combustion chamber like a 2-stroke. Will it
> carbon up the motor compared to std oil? Will it burn clean?
>
> Thanks
--------------------------------------------------------------------------------
It seems that Mobil has done some of their own testing and have found Mobil 1 to be OK. In the past if you asked them, they would just say the Mazda does not recomend synthetic oil. Now they have a new blend of oil (Super-SYN), they say it is OK.
I have now been using 10w-30 Mobil 1 since July 1st. I have noticed cooler oil temps, smoother idle, and more power compared to the Castrol 20w-50 I had been using with no bad side effects.
quote:
--------------------------------------------------------------------------------
> Thank you for your inquiry.
> Mazda doesn't recommend synthetic engine oils
> in general for their rotary engines, experience and testing show that Mobil
> 1 provides superior performance in rotary engines.
>
> Technical Support Engineer (WJF)
>
> The above information is provided in good faith based upon the information
> presented by the customer. ExxonMobil is not responsible for any loss or
> damage resulting from inaccuracies or errors in any of the information
> provided or any acts or omissions taken in response to our advice.
>
> Exxon Technical Support: Mobil Technical Support:
> 1-800-44Exxon Prompt #3 1-800-Mobil25 Prompt #3
> (1-800-443-9966) (1-800-662-4525)
>
>
>
> ----- Message from ursnoozin@aol.com on Tue, 25 Jun 2002 17:00:03 +0000
> (GMT) -----
>
> To: mobilproducts@ourdataworks.com
>
> Subject: Mobil1 product Technical
> question
>
>
> I have a Mazda rotory motor (13B, N/A) in my MG Midget. The car is used
> for auto-xing, track days and some trips to the ice cream stand
>
> I want to know if I can use Mobil 1 10W-30 in my motor since it injects
> some of the oil into the combustion chamber like a 2-stroke. Will it
> carbon up the motor compared to std oil? Will it burn clean?
>
> Thanks
--------------------------------------------------------------------------------
It seems that Mobil has done some of their own testing and have found Mobil 1 to be OK. In the past if you asked them, they would just say the Mazda does not recomend synthetic oil. Now they have a new blend of oil (Super-SYN), they say it is OK.
I have now been using 10w-30 Mobil 1 since July 1st. I have noticed cooler oil temps, smoother idle, and more power compared to the Castrol 20w-50 I had been using with no bad side effects.