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Mazda RX-8 Care & Maintenance

106 messages, Last post on Dec 07, 2009 at 4:04 AM
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Hi folks. I've not been here in awhile. Thought I'd update this little forum with some practical wisdom. My Check Engine light went two nights ago in downtown Boston. I had been tweaking my parking spot right in front of the Boston Ballet building, trying to make sure none of the Bostonians, with their "bumper banging" parking technique, banged into my RX-8. After several starts and stops, with the engine warm, where I revved to 3000 before shut down, my "Check Engine" light lit up. I instantly grabbed the manual, and it seemed that the most likely issue was a sensor problem, caused by my starts and stops. I drove home slowly and thought the issue would disappear by morning. It didn't. So I drove to the dealer. The dealer charge me $95 to plug the system up and have the computer tell me that an Error #22, which is the SSV out of spec error. It tested fine at the dealer, but it'll be $700 to replace if it occurs again. Here's hoping it was my stop and stop parking that caused it. In the mean time, they also found that both of my engine mounts had gone. They said mine had lasted ten times longer that anyone else's. Over a year ago, a cold engine vibration had started, but I had just put up with the vibration because it went away once the car was warmed up. Well, that vibration was the bad engine mounts according to them. So I had been driving around without good mounts for a long time. I must have had my car for service and oil changes half a dozen times during that time and they never checked the mounts. Ugh! Anyway, $525 to replace both mounts, $95 to diagnose a potential future problem. An entire year of driving around with a potentially dangerous engine mount flaw. Here's the wisdom. An RX-8 AT when idling, cold or hot should ALWAYS be purring, not harshly vibrating. An RX-8 MT, when engaging the clutch, cold or hot, should ALWAYS be silky smooth, right up to the stall point. Otherwise, check the engine mounts! Still lov'n my sweet ride. Did my fourth 2000 mile Boston to NC beach run. Two 10 year olds, my wife and I. Listen'ed to Harry Potter all the way done. Fantastic way to travel, by RX-8. I still feel just like Harry Potter on his Nimbus 2000 and his Firebolt, every single time I drive my RX-8 AT. I so love my car.... I don't really even care about the $600 bucks anymore, because she's driving like new again... so nice and smooth.
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Replying to: trispec2007 (Sep 23, 2009 7:26 am) |
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Replying to: mikemartin (May 18, 2009 8:21 pm) LOVE MY CAR. I have no issues at all. It's a 2004 GT 6-speed with 25,000 miles on it (yeah, 5 years old with that kind of mileage). The engine is still under warranty until 11/2010. I use cheap dino oil, as suggested in many forums. It loves to be "rode". I check the oil once a month, I let it warm up for 60 seconds when the day first starts and I make sure to red line it twice a week so everyone involved remembers what this relationship is all about. My next car will, probably, be another slightly used RX8. I've had it for 7 months and still can't believe it's mine.
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Replying to: m3metro (Oct 12, 2009 3:38 pm) The check engine light came on about 1 month after purchase. Although it felt like it was going to stall it didn't, and I took it immediately to the dealership where I purchased. They were not aware of the starting procedures and managed to flood the car and were not able to get it started. In trying to get the car started again, they informed me that there was low compression and that the engine was shot. Shortly thereafter they notified me that they had gotten the car running. One month after the car home, the check engine light is on again. At this point, the car is not exhibiting the stalling issue. I took it to a different dealership, and they too informed me that there is a compression issue. My confusion is that I have read many posts saying that compression may not be the issue? Additionally, I have been told that the car needs to be revved slightly prior to turning off the car, and then told that is nonsense and does not need to be revved? Are there any experienced rx8 owners that are willing to provide some insight to a rx8 newbie? Any would be greatly appreciated. |
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Replying to: ksmigel (Nov 21, 2008 11:43 pm)
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Replying to: seapal (Oct 21, 2009 1:24 am) I live in Boston. Even here snow tires really are not required. My cheap all seasons handle 4" of fresh snow. The traction control and LimSlipDif handle the slippage. Snow tires might handle slip better, but the car bottoms out at 5" so nothing will help with that.
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Replying to: trispec2007 (Oct 25, 2009 3:00 am) |
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I have a 2004 RX8 and I LOVE it. Unfortunately I live in Denver and we get a lot of snow during the winter, my car stays home and gets cold. Everytime the temperature drops to 30 or 20 degrees I have a hard time getting it started up. I am not sure why that is but once it gets warmer it's fine and it starts up with no trouble. I assume also that having good snow tires really makes a difference when driving it in snow or icy conditions, I drive it at all when it's snowing. It is absolutely fun to drive though. I do have to get rid of it this year since everone is opposed to me having an unreliable car in the winter here in Denver. One thing I don't like about it is all the maintenance and you always have to put oil in it and check that it has the correct amount. One problem I did have with it was the oil metering pump wnet out which out of pocket was about $850 dollars. Regardless I still love it, but we have to part ways soon. |
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I have a new 2009 rx8. i am noticing heavy black carbon buildup on the end of my exhaust tailpiles. is this common for this car? should i change the type of gas i am using. Also, i often make a 450 mile roundtrip drive for work all highway at 75 mph. the engine was down 2 quarts of oil from that trip and a few extra days. i knew the car is known for its oil thirst, but how often are you other owners adding oil on new engines and with what octane gas? thanks for all posters.
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Replying to: seapal (Dec 06, 2009 7:55 am) On the gas, I use Shell 93 Nitrogen enriched exclusively. Sometime I drive up into Maine from my place in Massachusetts. The highest octane in Maine is 91. I've noticed huge difference in those missing 2 octane points, when I am high revving after the engine is completely warmed up. The rotary engine under performs with anything less than 93. Hell, I'd love to get some 100 octane jet fuel if I could get it. The octane lets more of the gas get into the firing chamber without burning, so you get the full punch at the higher revving levels. |
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