3K RPM for 10 sec?
#1
3K RPM for 10 sec?
on the rx8 dvd, it says to rev the engine to 3,000 RPM for 10 seconds before shutting off the engine. when is this necessary? just for short trips or every time i shut off the engine? some people even say that you just have to take it up to X RPMs for just 1 second before shutting it off. i never shut off the engine if it's not at normal operating temperature anyway.
#2
Only if the engine's cold. And both the number of seconds and RPM number are debated. Some people say 5k for 1 second. I just give it a quick blip if the engine's cold, and I haven't had any problems yet.
#3
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Originally Posted by Asmoran
Only if the engine's cold. And both the number of seconds and RPM number are debated. Some people say 5k for 1 second. I just give it a quick blip if the engine's cold, and I haven't had any problems yet.
#4
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The recommendation on the DVD is the same one that Mazda includes in the Quick Tips guide that came with you car. It is only for situations where the engine does nor warm up normally.
Mazda recommends the following:
- Never shut the engine off cold.
- If you must make a short trip (like moving it out of the garage), use the following procedure:
1. Start the car and let the engine stabilize
2. Move the car
3. Let the car idle until normal operating temp is reached or for 5 minutes
4. Rev to 3000 RPM and hold there for 10 seconds
5. Let the engine return to idle
6. Shut off the car
For normal operation Mazda has no special recommendations: start the car, briefly let the engine stabilize, drive it, park it, let go to idle and turn it off.
Note that there are a lot of opinions on this forum that are different from what Mazda recommends. I personally do the Mazda thing, but that is just me.
Mazda recommends the following:
- Never shut the engine off cold.
- If you must make a short trip (like moving it out of the garage), use the following procedure:
1. Start the car and let the engine stabilize
2. Move the car
3. Let the car idle until normal operating temp is reached or for 5 minutes
4. Rev to 3000 RPM and hold there for 10 seconds
5. Let the engine return to idle
6. Shut off the car
For normal operation Mazda has no special recommendations: start the car, briefly let the engine stabilize, drive it, park it, let go to idle and turn it off.
Note that there are a lot of opinions on this forum that are different from what Mazda recommends. I personally do the Mazda thing, but that is just me.
#5
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I've never had a problem with flooding. If you feel the need, just give the throttle a good, quick "blip" before shutting down, and you're good to go. I think the majority of flooding issues have been resolved with some of the latest ECU flashes. I wouldn't worry about it too much.
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oh nice. real nice. my salesman told me to hold the rev at 3K and shut off... BEFORE returning to idle. on every shut off. i've put 800 miles on the car so far with no apparent problems. can anyone tell me what damage, if any, can be done to the engine if its shut off at 3K?
#9
konradk, I wouldn't worry. The only thing that happens if you do it your way is that a little bit more gas is injected as it shuts down. Letting the revs fall=less gas being injected. You haven't hurt the engine.
#10
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Originally Posted by SilverStreak
konradk, I wouldn't worry. The only thing that happens if you do it your way is that a little bit more gas is injected as it shuts down. Letting the revs fall=less gas being injected. You haven't hurt the engine.
#11
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Originally Posted by SilverStreak
konradk, I wouldn't worry. The only thing that happens if you do it your way is that a little bit more gas is injected as it shuts down. Letting the revs fall=less gas being injected. You haven't hurt the engine.
#12
Originally Posted by nycgps
I just shut my 8 off , even if its still cold.
No problems.
No problems.
1. Never any flooding ??? If not, to what do you attribute this good fortune to?? Manyowners have had flooding problems when "breaking the rules""
2. Which PCM reflash ? LAtest?
3. Are you using synthetic or dino in the engine
#13
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My car used to flood all the time. The worst was when I moved it 1 block in freezing temps. I tried starting it several times while holding the gas pedal down and nothing happened. I ended up replacing the battery I had in there (my car is an 04) and starting it again. It worked.
After I got the latest flash and a few Warranty upgrades, I haven't had any flooding problems with the car, no matter what I do. I love it.
After I got the latest flash and a few Warranty upgrades, I haven't had any flooding problems with the car, no matter what I do. I love it.
#14
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just got my car back from having it repaired under warranty and the new rules about the 3k thing is 4k rpms for 30 seconds in cold weather climates they gave me a little booklet for cold weather operation with litte tips in it if you feel you need it talk to your dealer they should have it
#15
Out of NYC
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Originally Posted by ched
a few questions questions:
1. Never any flooding ??? If not, to what do you attribute this good fortune to?? Manyowners have had flooding problems when "breaking the rules""
2. Which PCM reflash ? LAtest?
3. Are you using synthetic or dino in the engine
1. Never any flooding ??? If not, to what do you attribute this good fortune to?? Manyowners have had flooding problems when "breaking the rules""
2. Which PCM reflash ? LAtest?
3. Are you using synthetic or dino in the engine
2. Latest now.
3. Full Synthetic All the way.
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