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Mazda RX-8 Care & Maintenance

103 messages,  Last post on Oct 25, 2009 at 5:17 AM

You are in the Mazda RX-8 Forum. Your Host is claires

What is this discussion about? Mazda RX-8, Auto Body, Engine, Fuel System, Interior, Oil, Paint, Coupe


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#87 of 103
Re: Loud thumping noise from rear axle [mdw1000] by 4_my_8
Apr 01, 2008 (10:09 am)
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Replying to: mdw1000 (Mar 21, 2008 7:12 pm)

i believe the oil that you're refering to is Royal Purple. BTW... there's a grand discussion about this on the rx8club forum. general consensus is that synthetic oil (which Royal Purpe is) is not good for the rotary engine. Once again, to each is own. From my understanding, synthetic oil caused rings in the pre-Renesis engines to go bad. Mazda claims that they have used better materials for the O-Rings in the Renensis engine but also disclose that they have not done any long term testing with synthetics so they do now recommend using synthetics. my advise to you... refer to your bible (Owner's Manual) and choose an oil that meets the criteria listed there. I'm a believer in synthetic oils for piston engines however, i'm not going to go against the folks at Mazda since they haven't done long term testing and I myself don't have the money or will to conduct my own long term test should things go wrong and muck up this sweet engine. i use Castrol GTX 5w20 religiously. i have a N/A engine and have no need for synthetics at this time. just my .02. BTW... if you like debates here's the link the the discussion on the RX8 club forum. Be prepared for a lot of back and foward but hopefully you'll be able to draw your own conclusion. http://www.rx8club.com/showthread.php?t=52856
 
Happy Reving!
#88 of 103
you answer to my question.. by lesch
Apr 01, 2008 (3:53 pm)
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Replying to: 4_my_8 (Apr 01, 2008 10:09 am)

Yes I meant Royal Purple, not sure why I said Blue, must have been concentrating on something else when I wrote that, I knew it was called Royal Purple and as I have done some reading on this, I don't feel that a synthethic oil is the way to go until Mazda does their own testing and reveals their opinion, as I certainly don't want to do anything to harm my car's engine nor do I want to void my warrenty, thanks also for the link to the discussion, I will definately check it out. I simply can't imagine why anyone would take a risk if you are not sure of a positive outcome. Oh well, it is a beauty of a day and I am off to run some curves..
Thanks again,
Pam
#89 of 103
Is the RX8 Inherently Flawed? by johnxyz
Nov 12, 2008 (6:28 am)
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Honestly guys I'm looking for a good value sports car and the RX8 fits the bill but geez does the calendar turning from '06 to '07 or '07 to '08 magically make all these engine/drivetrain problems (design flaws) disappear? There just does not seem to be any end to these RX8 problems followed by Bandaids from Mazda that really do not address the issues.
 
Are the 07/08's trouble free?
 
Should I wait for a new model replacement (is one even planned by Mazda) or just completely cross it off my list and move on to a Miata or another marque?
 
Thanks in advance for any advice.
#90 of 103
Re: Is the RX8 Inherently Flawed? [johnxyz] by lesch
Nov 17, 2008 (7:37 pm)
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Replying to: johnxyz (Nov 12, 2008 6:28 am)

Hello: I am the proud owner of an 04 RX 8. This is my second one, and I love both of my cars, the first one I bought new right off the showroom floor and the second one had 600 miles on it when I found it.
 
I do not feel the car it be inherently flawed, to be honest with you the first problem I encountered was the cold start problem, but that problem is easily solved with just remembering to treat the car right, to me it is no different then having a physical problem with your own body, you just have to be conscious of it and remember not to do it. The only other problem I have had and this was a recall was the CD going out, which was replaced under warrenty.
 
I love my cars and would not drive anything else, I have chosen to keep my 04's instead of upgrading to a newer model simply because 04 was the first year they came out and to me that makes them very special. What you have to mainly understand about the RX 8 is that it has to be driven as it was made to be driven, as a sports car and yes that means getting out there and really driving it, not treating it as you would a touring car or a traditional family car as this is not what it was built to do, it was built to go and go it will.
 
No I would never use a synthetic oil, not only because it will void the warrenty, but also because if you understand how the engine works you will see that it is not an appropriate product to use with this car, that said, I guess you will just have to make your own mind up, no car is perfect, just as no person is perfect, you have to take the good with the bad as with any vehicle on the market.
 
I have always loved cars and took shop and auto when other girls took home ec class, my car also fits me, I am only 5 ft. 5 inches tall, and my hubby is 6 ft 5 inches, it is NOT a car made for tall people, the pedals are also not made for someone with big feet, what this does for me, is that it makes my car ALL MINE !! LOL
 
Don't know if any of this info will help you in your decision, I would say that if you have this many doubts now, that if you were to choose to buy one you might spend more time finding faults with it then you will enjoying it (sorry if I am wrong about that, as I do understand your concerns especially after reading about the problems some people have had) but if you consider the problems most have had they can be explained to what the owner has or has not done to and for the car.
 
I will say one thing, it is not a car for winter driving in the snow and ice, it simply is not, but on good days in the winter time there is no better way to take out the winter blues then to get out there and enjoy a drive in your RX 8 !!. I wish you the best of luck, make a list of pros and cons, and then let your conscious be your deciding factor.
 
Also, if you are a family man, although the car comfortably seats 4, in my humble opinion it is not a car to haul kids around in, but that is just my opinion, there are many owners who do so, I just preferred to wait for my dream car (s) until my kids were grown and on their own. My cars are black with red/black leather and black on black(leather interior also) I will say I get allot of envious looks, and some odd ones as a woman behind a wheel of such a great car, my car is a 6 speed also, would not have it any other way as I find automatics boring and to me an automatic RX 8 defeats the purpose of the car (again just my opinion). It will be interesting to see what other responses you get, again good luck and if you do decide to get one, ZOOM ZOOM and have fun.
#91 of 103
Winter Driving with the RX-8 by ksmigel
Nov 21, 2008 (11:43 pm)
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With a dedicated set of snow tires, the RX-8 is the best handling rear wheel drive car I've ever driven in the snow, and I've driven many.
 
The 50/50 weight balance, limited slip differential, fantastic traction control and electronic stability control all keep this car amazingly confident and planted in even deeper snows (nothing crazy given the ground clearance - up to 6" ON THE ROAD), as long as you pick a snow tire with a relatively aggressive tread - Blizzak, iPike, Nokian WR, Michelin X-Ice, Dunlop Wintersport 3D, Goodyear Eagle Ultra Grip GW3 - or something similar.
 
Also, you should go from the 18" wheels, with the 225/45/18 tires to the 17" wheels, with a 215/55/17 snow tire for winter driving - a narrower tire increases the PSI of the car displacement over snow, and increases traction.
 
The RX-8 is a blast to drive in the snow. Completely controllable, confident and very good stopping distances with the very effective Mazda anti-lock braking system.
 
Dedicated snow tires make a NIGHT & DAY DIFFERENCE!!!
#92 of 103
Re: Oil Change Frequency [johncalifornia] by xd2
Apr 22, 2009 (9:30 am)
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Replying to: johncalifornia (Jan 25, 2004 1:00 pm)

Hi johncalifornia!
 
im actually in the market for an RX-8 myself (2004 with 40 000K) and my biggest concern is that of the oil. Now down here in Canada, where the weather can be very cold and harsh, you don't see a whole lot of RX-8 especially in the winter. But for the most part, im concerned about the oil consumption. A mazda mechanic told me you must verify the oil at least once a week which is fine by me. However, he couldn't specify if that meant that i was likely to add oil every week of if the verification is only for precaution. What im asking here is at what frequency in a months time of daily driving will you need to actually put oil in the engine??
 
Thank you in advance!
 
XD2
#93 of 103
Re: Oil Change Frequency [xd2] by trispec2007
Apr 24, 2009 (12:17 pm)
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Replying to: xd2 (Apr 22, 2009 9:30 am)

I'd put oil in about every three or four weeks to keep it topped off. My 2005 RX-8 AT drops a third to half a quart every third or fourth gas fill up. On the dip stick to first line is half a quart. I fault myself if I don't catch it before it gets to that first line especially in the summer.
 
On gas I city drive mostly and get 17MPG on full auto non-aggressive style. When I paddle shift aggressively MPG goes to 12.
 
In the winter, here in Massachusetts, I don't worry so much about that first line as much.
 
One good thing, on the pure highway trips I take down south, there is very little oil usage.
#94 of 103
Mileage by mikemartin
May 18, 2009 (8:21 pm)
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I get a consistent 282 miles to the tank, using 13.5 gallons to fill up, with a mix of 50/50 city and highway driving.
 
And I do not baby the car. Driving the rotary hard is literally preventative maintenance. The harder you drive it, the longer it will last and the stronger it will get.
 
Do some research and you'll see that this is demonstrably proven.
#95 of 103
GPS upgrade by mcusmc
Jul 08, 2009 (2:14 pm)
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I own a 2006 Winning Blue auto RX8 and love it. Has anyone upgraded their GPS system and what is involved? Price, etc? How often is a new disk available? I have ended up in a few parking lots recently, and one back yard.
LOL. Thanks for the great forums everyone.
#96 of 103
cabin air filter by psfod3
Jul 16, 2009 (7:10 pm)
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I have a 2007 RX-8 with 21,000 miles on it. I was in the dealer today for a oil change and they suggested that I replace the cabin air filter. I declined to do it today because I looked all through the owners and service manuals that came with the car and there was absolutly no mention of a cabin air filter for this car. Was the dealer just making this up.

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