- #66 of 103
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Re: Synthetic Oil [4_my_8]
by trispec
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Mar 06, 2007 (2:57 pm)
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Replying to: 4_my_8 (Mar 06, 2007 12:53 pm)
Wow, no response yet. NON synthetic cause synthetic hardens the apex points on the rotors, eventually to cause them to shatter. But from there, Mazda says 5-20 in the US, but there's a huge argument with some folks swearing, with good reason, to use 5-30. What region of the US, northeast, southeast,....? Hotter regions appear to have more problems with damage to the rotors with the thin 5-20 oil.
5-30 is to thick and blows by into the CAT seemingly causing the CAT to fail sooner the EPA rules allow (80K miles), where as 5-20 burns up before hitting the CAT. That, at least is my simple minded understanding of the situations.
The other big voices (the ones who really do know) should chime in here soon.
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- #67 of 103
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Re: Synthetic Oil [trispec]
by 4_my_8
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Mar 07, 2007 (6:15 am)
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Replying to: trispec (Mar 06, 2007 2:57 pm)
thanks... that does help explain a little more and seems to be the general thing that i've read hear. i live in jacksonville, fl. we do see hot summers and cooler than normal FL winters. it makes sense that the synthetic would hang around longer and that the thinner oil would burn faster... (which is what the engine does by design from my understanding). this is my 3rd auto and i've never had to replace a cat converter on any of them. i got the most miles out of my honda accord before trading it in... 150K. Are cat converters expensive to replace? i'm considering the 5w30 oil but may just stick with the 5w20 as mazda since i plan to be anal about changing the oil every 3k anyway... what do you guys think. i just want to make sure my baby is around for a long, long time.
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- #68 of 103
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Re: Synthetic Oil [4_my_8]
by trispec
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Mar 07, 2007 (7:09 am)
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Replying to: 4_my_8 (Mar 07, 2007 6:15 am)
When it's really hot, ie 90 plus, don't drive her hard in long stop and go traffic. Of course the AC ain't that strong in stop and go traffic either so you may not want to use her then anyway. On highway trips in the summer drive nice and steady, no high rev passing.
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- #69 of 103
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Re: Synthetic Oil [4_my_8]
by 4_my_8
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Mar 07, 2007 (7:21 am)
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so if i use the mazda required 5w20, keep her nice and steady on hot days and even run the ac more? during the hotter months when im feeling a little frisky, use the thicker oil? also, i picked up a recent copy of MazdaSpeed Magazine and there on page two or three was an rx8 being used to advertise Royal Purple synthetic oil. DO YOU FEEL MY PAIN? what is a responsible owner to do when he wants the best for his baby but then finds that the best may not be the best for her at all. so many race enthusiasts swear by that royal purple synthetic oil.
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- #70 of 103
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Re: Synthetic Oil [4_my_8]
by mdw1000
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Mar 09, 2007 (12:10 am)
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Replying to: 4_my_8 (Mar 07, 2007 7:21 am)
rx8club.com has TONS of threads on this topic. Some people swear by synthetic, others swear by dino. I just figure I'll go with what mazda recommends.
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- #71 of 103
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Re: Synthetic Oil [mdw1000]
by goopilot21
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Mar 09, 2007 (5:16 am)
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Replying to: mdw1000 (Mar 09, 2007 12:10 am)
finally.. someone that realizes they should just use non synthetic. congrats..your car will now last longer than the stubborn people that are like,'but i always use synthetic and it hasnt failed me yet." they will not be hapy when they take thier car to the dealers and the maintenance says they will need a new motor. then thye will think, well cool, it s on the warranty so i jsut got a new motor for free. ERRRRRRRRRRRRRRRRR!!!!!!!!!!!!! WROOOOONG!!!! the second they see there is synthetic oil in that car the warranty is automatically withdrawn from that particular motor and it looks like they jsut paid for the motor themselves. it is simple.............USE NON-SYNTHETIC.
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- #72 of 103
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Re: Synthetic Oil [goopilot21]
by 4_my_8
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Mar 09, 2007 (6:23 am)
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Replying to: goopilot21 (Mar 09, 2007 5:16 am)
thanks guys. i love the real information that i get from this place. i will not deter... i will use mazda's 5w20 mix. anything to keep my baby running like she should. did i tell you guys that i love this car?
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- #73 of 103
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Madzda Extended Warranty
by mklis
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Mar 19, 2007 (11:14 am)
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I have an '04 MT with about 35k miles on it. I haven't had any probelms with the car, at least not yet.
Is the extended warranty offered through Mazda something that I should even consider? Or is it really a waste of money?
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- #74 of 103
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Re: Madzda Extended Warranty [mklis]
by 4_my_8
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Mar 19, 2007 (11:31 am)
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Replying to: mklis (Mar 19, 2007 11:14 am)
i usually get an extended warranty with any used car that i get. honestly, i research the hec out of the 8 through various web postings and read a lot about the experiences other owners were having with their 8's. i purchased an '04 MT with 27K on it a month ago and i opted to get the extended warranty. it was only and extra $10/month added into the payment and it covers me for an additional 3yrs/36K on top of the standard 4 yr/50K that Mazda gave me on the '04 so it's really piece of mind for down the road.
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- #75 of 103
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Maintenance
by rsredmage
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Mar 31, 2007 (5:36 pm)
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I plan on buying (financing) an RX8. But before I do, I want to know how the maintenance is. If I needed an oil change, could I do it myself? If I took it in, will it cost over $50-60 dollars? Or is it like a mercades where everything has to be specially made for the car, oil changes are like $200?
Is it true that I have to put more oil in every other time I fill put gas in my tank?
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