Figs

Its usually around 2.5ish like i said it usually will be when its pretty cold (30s). For the most part I have to let the car warm up to about the first line if I want a smooth ride on cold mornings.

Ya it will just happen randomly for me. On my daily commute (20 miles) it might not go down when im going, but on the way back it could drop then come back as much as 2 lines. The only reason i noticed it was due to the fact that i noticed how much it would drop. By the time i would get home it would finally come to a rest to a normal days usage of gas. As of right now everything is used except the plugs. coils dont show to much of a wear on em though. ghost tank


Pretty obvious which is which. ones on the left and doesn't move much, the other is in the middle, huge, and is all over the place lol

superhypered

yeah, it feels just like when im in second on the expressway and i can tap it a few times, and thats the same affect we're getting.. maybe its trying to wake us up :P

and my fuel and tachometer both go up and down a lot

superhypered

sorry, i didnt realize he mistakenly put fuel guage, but i knew what he meant

seriously tho, mine goes up and down more than a roller coaster :P

superhypered

meh, i'd try a regular place before you go to a stealership.. personally, i'd drain it, add some more, drive around for a thousand miles or so, and drain it again to get most of it out, imo.. it should be fine for the meantime anyways

p.s. i hate it when people who dont know much about the rotary do things like that to the car i.e. babying it.. not checking the oil often.. doing what they did to yours.. it even says 5w-20 on the cap, and they should at least check for synthetic or not.. sigh

p.s.s. i dont know how to use multiple post replies fml

York

Because synthetic oil kills the engine? Don't forget, Elf just passed 200k miles on his original engine and ran synthetic oil the whole time. But hey, if you're that scared it'll blow your engine up, all the synthetic will be gone after a few oil changes.

superhypered

well he'd be slowly pulling it all out is what im saying, eventually, it'd all come out..
and.. yes, i saw that.. but he did use synthetic? and you just said the engine would blow up? but his did not? maybe its just luck

carbonRX8

iTrader: (1)

I hate it when someone like you posts like they think they know something. But they dont.

superhypered

I have relatively moderate knowledge of rotary engines, what are you referring to.

carbonRX8

iTrader: (1)

I refer to your tacit proclamation that synthetic engine oil is anathema to a rotary motor.

superhypered

I don't believe I was saying that... If by what you said meant I was proclaiming that synthetic oil is bad for rotary engines, I don't see where I said that anywhere at all, nor was I the one bringing up that its bad for the engine, I was just giving a pointer in what could or should be done to get it out, its nothing more than an opinion, that's all. Personally, I stick to Mazda's recommended non synthetic 5w-20. And I'm going off of things I have read recently about synthetic oil and what it can do *supposedly*. I'm not trying to recommend anything other than that. Plus, if his 8 has been running the whole time on synthetic, then a little bit of it cycling through the engine mixed with the recommended oil won't do as much damage to it if the damage has already been done, if any at all. Lastly, judging from your join date, you've had at least 6 years of experience with rotaries. I, on the other hand, didn't even know this kind of engine existed until about 5 months ago when I got my car. I knew about the car, drove it in Need For Speed.. But nothing about the engine. I'm only eighteen, so I'm pretty much newb at everything I guess, but a very good driver.. And before you think I'm just some kid, I have a full time job and I'm currently paying off my amazing car.
/end life story
Please just give your opinion next time instead of immediately going into disliking an individual for sounding not too bright. Help us newbs learn faster, not make us feel like retards ftl. Thanks

carbonRX8

iTrader: (1)

Then I deeply apologize.

ShellDude

iTrader: (12)

Carbon, you hitting the bottle again?

sigh... It's called an evacuator and you can get them really cheap... and they take all the pain out of an oil change. I've been using this one for about 3 years on all of my vehicles.

Oil changes take me about 15 minutes. It's a rotary... it burns oil by design. Learn it, live it, love it

superhypered

It's no hard feelings

lateralus

iTrader: (1)

Ok, confused.... Atfirst I thought figs was talking about the fuel gauge and superhypered was talking about the RPMs. Now I am not sure haha... If the fuel gauge is jumping around, that isn't normal. If the RPM gauge is jumping around, that is normal...


Figs,... With the shaking feeling, if you are trying to keep it steady at 2.5k RPMs or lower then it could just be shaking because the engine is getting kinda bogged down from low revs... Give it a little more gas (maybe up to around 3k RPM) and see if the shaking goes down as the revs increase... I know that with mine if I am trying to keep it at a steady speed under 2.5k RPMs then it will start acting like that a little bit.

Figs

Forgot I was in the rx8club forum. Let me clear the air with something we can all relate to, pics

This is what jumps around every once in a while


Not this

Also, gotta put some tape over that airbag light like i should on the coolant light lol

I'll keep an eye out to see if its just bogging or if its just being stubborn. More than likely I'll just keep it in second

Anyways, I need some humor, anyone else ever get some condensation in their headlights/tailights? I swear all i need is some fish and i got an aquarium

FoxeyL8y

figs, your avatar makes me wince... i really hope there was no denting/scratching!

Figs

Nope, no dents or scratches. I personally had to lift them off so they wouldn't slide their shoes on the bumper.

kcott

Okay, I'm trying to figure this out. I have an '04 auto with the upgraded starter. Battery is less than 8 months old. Just replaced the coils last week. Spark plugs were replaced at the same time as the battery. Just changed the oil. Mazda told me my cat was "out of emissions" so I'm replacing that as we speak. Going to change the spark plug wires next. All this work, and I'm still having issue with long starts after shutting it down warm. Nothing is more frustrating and embarrassing than being at a gas station and having to start it up to 3-6 times to just get the engine going. However, if I wait at least 20-30 minutes, the car will start up in less than 4-6 seconds. What's the deal here? Is it something out of my control? Is it a lack of compression? What's the next step I should take? Would having a clogged cat contribute to a long start? Also, would it not be recommended to fill up at the gas station with the car on so I don't have to deal with the repeated starts?

Brettus

iTrader: (2)

Do the compression check - seems the most likely culprit . Out of 100000 mile warranty yet ?

kcott

92,000...getting close

I'm afraid that Mazda is going to pull some **** and say I don't have any maintenance records, i.e. oil changes. I do that all myself. Didn't realize I was supposed to keep all the receipts until I started browsing this board.

lateralus

iTrader: (1)

Since the coils and plugs have recently been changed, and you have the upgraded starter, and a new battery, and it is warm starts, I would say it unfortunately does sound like low compression... I think compression would be more likely to be your problem than the cat judging from the symptoms... Go to the dealer and get a compression test done... How many miles are on your car? If you have under 100k then the engine will still be under warranty if compression is your problem.

And no, DO NOT fill up the tank with the car running... Horrible idea, haha


Edit: just saw the above post... Definitely go on and get the compression test done before you go over 100k miles... And some people have no problem getting the warranty without maintenance records. Others do. It really just depends on the dealer a lot of the time... So you may still be able to get one under warranty

superhypered

now i am confused.. well done.

my fuel gauge is fine.

my rpm.. well, twice, my foot didnt touch the pedal and it bounced up and down.. yeah

kcott

Thanks. Going to do the compression test after I get the cat installed.

REDRX3RX8

Not only that, but ELF tested all kinds of oils and weights against car speeds to get cooling data; very comprehensive.

So he was continually mixing, and changing oils, weights, brands, and probably syn vs dino.

This car almost doesn't care what mo you use compared to piston with valves lubrication, but premixing really works here, and doesn't really do much on a piston engine.

alexp

Here is a question about my '08 MT: Ever since I bought it new the best milege I got from it is 260 from 14 gallons (~18.5mpg), and that's during highway cruising only. My normal milage is somewhere around 160 miles a tank (~11.4mpg) and my last fill up I went down to almost 9mpg. Having said that I do redline the car a lot and spin my tires when no one is looking, but is this low of a milage normal?! I have a mazdaspeed CAI, RB exhaust, otherwise stock.