GeoffJ

hi guys,

could anyone please tell me where the apex seals are located, and what components would i lose if it breaks while on the road.

Thanks,

Daemos

Apex seals are in the engine...if you blow the apex seals you could lose the engine.

Z0oMzo0m

iTrader: (4)

we live on APEX seals!! they are located on the ends of the rotor. (hint.. APEX) i wanna say basicaly gives you compression and a good running motor

Cromax

Your dealer didn't do a very good job explaining ... *shakes head*

This is something you should have known before buying the car ... since it is the reason a lot of us bought it in the first place.

Watch this:
http://www.youtube.com/watch?v=6BCgl...eature=related

For information, have a quick read of these:
http://en.wikipedia.org/wiki/Pistonless_rotary_engine
http://auto.howstuffworks.com/rotary-engine.htm

Anyway, get a good understanding of how it works. Once you understand how it works, you'll realise there's nothing to worry about. If you're still worried, an engine rebuild doesn't cost all that much at the end of the day and you should get 200+km out of the engine if you look after it properly.

takahashi

Cromax, I hope you do mean 200000km.

GeoffJ

Thanks for the reassurance :D. Now ill jst have to enjoy my 8 as much i can haha.

auzoom

Yeah, just think about them being the equivelant of rings on a piston engine.

Cromax

Yeah, but adding in the fact that it drinks oil as well as petrol

GeoffJ

Thanks guys, much appreciated. Just another thing, how many times should i redline the car a day to clear the carbon. i drive approximately 120kms a day just to and from work.

Thanks.

StealthTL

iTrader: (1)

I think 'redline' is a bit misleading, what is needed is a bit of wide-open-throttle, only high engine output, high intake volumes and high exhaust gas temps will clear carbon.

The old RX-7 phrase 'drive it like you stole it' applies even more to the '8.....

S

GeoffJ

hahaha, sweet. i drive like that every day in my liberty. just step on it whenever im bored and go 30ks over the limit casually.

Cromax

I don't consider this to be correct. I give mine a boot every now and again, but most of the time I'm driving it as a GT car, not as a sports car (as it's not a sports car at all!). You don't drive GT cars on the limit all the time ... they're not made to be driven that way!

I'm also heading towards 120k with no issues with my engine or drivetrain ... and I'm on my first set of coils!

DOMINION

Dam you beat me to it

GeoffJ

yeah i just vary my driving, i dont boot it 24/7 but time to time i will. Not a full trip offcourse, maybe when im late for work ill drive like a maniac. haha, anyways what sort of oils do u guys recommend?

DOMINION

I use Mobil 5-W30 in the summer and 5-w20 in the winter. Its been getting really cold out here in Las Vegas NV (USA). I also change it ever 2,000 miles and flush it. Keeps my engine running great and clean.

GeoffJ

this may also sound silly, but if i get my rx8 serviced theyll obviously change the oil. If i dont know what oil there using say 10-w40 and i top up with 5-w30 after 1-2 weeks. Will that cause any harm?

Easy_E1

iTrader: (2)

Tell them what weight oil you want. That would solve any mystery.

GeoffJ

will it hurt mixing with other oils tho?

Easy_E1

iTrader: (2)

What other oil are you going to mix with it? Just tell the dealer you want 5w-30 and buy some to keep on hand to top it up with. Castrol GTX 5w-30.

GeoffJ

I was thinking more along the lines of 10w-40, the weather here it probably gets as cool as 5degrees around the 5am peak during winter, and as hot as 40degrees in the summers. What you think?

StealthTL

iTrader: (1)

A good tip is NOT to go 'thicker' on the first number - that is the cold viscosity, and NO oil is thin enough on cold startup.

A low first number usually indicates a very good oil. I use 0w30 in winter, and 0w40 in summer.

S

GeoffJ

thanks alot for the tips, it helps alot. I think ill try n settle for quality 0-5w-30/40 oil.

DOMINION

Thanks for posting that StealthTL (someone who knows wtf he is talking about). I was to lazi to dig up all them post you stated about the oil weight.
For the OG poster check this out-> http://www.machinerylubrication.com/...?articleid=171

Also use some idemitsu pre-mix. Best stuff hands down.

GeoffJ

Checking out the old post now, thanks

Cromax

If you wanted to know what oil to use, you could try these out:

Penrite HPR 5 5W-50?
Mobil 1 5W-30 (It's semi-synthetic and is rated the same as MRO)
Motul 5W-30 (I think it's the 8100 series one) or better.

I've personally only used Mazda Rotary Oil, Penrite and Mobil (in that order). I haven't used the Motul in my RX8 yet, but after playing with what I've used for fuel economy/performance etc. Mobil 1 comes out best by a long shot.

I find HPR5 to be too thick for everyday use fpr my application ... and the decreased oil use made me a bit nervous (as there was obviously less oil being pumped into the rotars) ... it goes a bit gritty like Mazda Rotary Oil does toward the 10000km change as well. which means it's oxidising before the oil change even with our 2+ litres of topups, which is bad!

Mobil 1 doesn't seem to oxidise as quickly as the others ... meaning it's the better oil out of those I've used. But that doesn't mean you shouldn't work out what's best for you!