Which oil would you recommend?
02-29-2012, 12:14 AM
#1
KGR13
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Which oil would you recommend?
As of right now I am using 5w20 synethic! Can I switch to regular non synethic oil because I heard once you use synethic your not suppose to switch back!
EVERYONE HAS THEIR OWN OPINION ON WHAT TO USE.
02-29-2012, 02:20 AM
#7
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Just search or you could look on this page and the next one. I bet you find at least 2 oil threads per page.
site:www.rx8club.com what oil
site:www.rx8club.com what oil
02-29-2012, 04:07 AM
#9
DO NOT USE SYNTHETIC! Its a man-made oil that is not made to burn. The RX-8 has to burn oil to run properly. Why do you think our cars have oil injectors in the rotor housings? Synthetic lasts longer and runs cleaner and is very good for cars with pistons. But not for rotary engines. Regular 5w20 or 5w30 works best for rotary engines. Ask any mazda dealer or certified mazda shop.
02-29-2012, 04:59 AM
#10
Registered
Mike... you know that 5w20 regular you are saying to use? I have some bad news... It is at the very least a synthetic blend. Really though it probably doesn't matter what you use, I go with 10w40 but I live in a desert.
02-29-2012, 05:26 AM
#11
You, as a new owner, will find the answer to your question here:
https://www.rx8club.com/new-member-forum-197/new-potential-owners-start-here-202454/
https://www.rx8club.com/new-member-forum-197/new-potential-owners-start-here-202454/
02-29-2012, 05:59 AM
#12
DO NOT USE SYNTHETIC! Its a man-made oil that is not made to burn. The RX-8 has to burn oil to run properly. Why do you think our cars have oil injectors in the rotor housings? Synthetic lasts longer and runs cleaner and is very good for cars with pistons. But not for rotary engines. Regular 5w20 or 5w30 works best for rotary engines. Ask any mazda dealer or certified mazda shop.
All motor oil has antioxidants to keep it from burning, and syn or nonsyn will both burn at over 400 deg f.
So give me some new idea why not to use synthetic!
02-29-2012, 06:23 AM
#13
DO NOT USE SYNTHETIC! Its a man-made oil that is not made to burn. The RX-8 has to burn oil to run properly. Why do you think our cars have oil injectors in the rotor housings? Synthetic lasts longer and runs cleaner and is very good for cars with pistons. But not for rotary engines. Regular 5w20 or 5w30 works best for rotary engines. Ask any mazda dealer or certified mazda shop.
and i hate to break it to you, but anytime you mention "ask any mazda dealer" in your post, you lose whatever credibility you think you had....
02-29-2012, 07:39 AM
#14
Registered
DO NOT USE SYNTHETIC! Its a man-made oil that is not made to burn. The RX-8 has to burn oil to run properly. Why do you think our cars have oil injectors in the rotor housings? Synthetic lasts longer and runs cleaner and is very good for cars with pistons. But not for rotary engines. Regular 5w20 or 5w30 works best for rotary engines. Ask any mazda dealer or certified mazda shop.
02-29-2012, 08:24 AM
#15
Registered
RP has a nice page where they explain how their synthetic is fine for rotaries. But I don't recall seeing anything on that page where they back it up by saying they'll stand behind anyone who runs into warranty problems because they used RP.
Ken
02-29-2012, 08:33 AM
#16
Also not taking sides, but how many miles do race teams go between engine teardowns and rebuilds? Versus how many miles one expects for normal use of a street car.
RP has a nice page where they explain how their synthetic is fine for rotaries. But I don't recall seeing anything on that page where they back it up by saying they'll stand behind anyone who runs into warranty problems because they used RP.
Ken
RP has a nice page where they explain how their synthetic is fine for rotaries. But I don't recall seeing anything on that page where they back it up by saying they'll stand behind anyone who runs into warranty problems because they used RP.
Ken
02-29-2012, 11:59 AM
#17
DO NOT USE SYNTHETIC! Its a man-made oil that is not made to burn. The RX-8 has to burn oil to run properly. Why do you think our cars have oil injectors in the rotor housings? Synthetic lasts longer and runs cleaner and is very good for cars with pistons. But not for rotary engines. Regular 5w20 or 5w30 works best for rotary engines.
No Synthetic oil WHATTTTTTTTTTTTTTTTTTTTTTTTTTT?
Man-made oil? so you're telling me the regular engine oil is not man made? wow I didn't know you can use the oil u dig outa the ground inside my engine.
when you don't know what you're talking about, Please just STFU. Thanks.
Ask any mazda dealer or certified mazda shop.
Certified Mazda shop ? Meaning whaaaaaAAT ?
in Japan, there are Mazda Certified Shop.
and to counter your utter complete I-don't-know-what-im-talking-about-bullshit.
here is a few.
Knight Sports 5w-30 Fully Synthetic For RX-8 and NA Rotary
Fujita-Engineering 10w40SL Fully Synthetic for RX-8
Want me to go on ?
Last edited by nycgps; 02-29-2012 at 12:10 PM.
02-29-2012, 04:06 PM
#19
I've read nearly every post and thread about which oil to use. I've heard all the arguments, and after six years of ownership (with no RX-8 issues to speak of), I feel confident in telling you that this is the only thing that's really important:
Check oil level regularly, add oil if it gets low, and change it when you're supposed to change it.
Check oil level regularly, add oil if it gets low, and change it when you're supposed to change it.
Last edited by New Yorker; 03-02-2012 at 01:12 AM.
03-01-2012, 09:03 PM
#24
9K All Day
I personally just use the oil from the dealerships. They sell it for around $6 a quart here (surprisingly) and any other oil is around $9 a quart. I just stick to the 5w-20, dont really notice a difference in anything with any other type so i just run what they recommend. they did make the car afterall.
lol