fcmountain

hi everybody, i don't know why my 8 's oil temp always very hot, when i was normal driving in the highway and keep the speed around 100km/h and the rev stays around 3000 to 4000, the oil temp could reach to 100. do u guys have same case as me ?????

Raptor75

How do you know, do you have an oil temp gauge installed on your car? Regardless the oil temp will be high because the rotary engine uses the oil to cool the engine. This is why you have oil coolers installed. I'm not sure what is normal but if you do a search you can probably find some info. When I was driving in the rain the other day I noticed steam coming off the driver’s side cooler, it was pretty hot. This is why I'm moving to synthetic oil after break-in 3K to 5K.

carbonRX8

iTrader: (1)

while my gauge may be malfunctioning, my temps regularly reach 260F in traffic. They drop to 180F at speed.

nez

ya how do you know its a 100 ?

zoom44

and is that 100 c?
/

fcmountain

yeah i installed the oil temp gauge, and yes its 100c/, is it no problem with using cythesic oil? because i asked the rotary specialise before and they said non-cythesic oil is best for rotary engine, and ive got one more question is do rx8 burn engine oil quick? because i checked the engine oil was less than half after 3000 kms

Brice-RX8

There has been debate on the site about synthetic/dino oil so search and read for yourself and make you own decision. As far as it burning oil, yes you need to check it regularly to make sure you stay full. My car tends to burn a quart of oil every 1200-1500 miles, I am not sure what that equals out to in liters/kms.

nycgps

iTrader: (1)

Most of the so called "rotary specialise(specialist?)" are pure-bser.

Tell them to PROVe that synth oil is bad for Rotary, before they open their mouth. and no I dont want "oh 20 years ago blah blah blah, burning not as clean blah blah" Just tell them to bring some oil out, light it up, see the result for yourself.

Anyway, 100C is Ok, thats only around water boiling temp. which is about 212 F

and when you're at speed, your oil cooler will cool your Oil Temp to something like carbonrx8 said. lower or higher, depends onwhere u live.

Raptor75

nycgps is correct IMHO. There is a lot of debate on synthetic oil but if you read it all through I feel you are far better off using it then not. The added protection is undeniable and it was reported that several top Rotary guys at Mazda said it was OK. Also the manual says nothing about not using synthetic.

Read some posts by Rotarygod on the subject, he makes some very convincing arguments for it.

Best oils to use are:
Royal Purple
AMSoil
Redline

fcmountain

o... thanks guys and sorry that i dont know u guys been debate about the oil already, and ok nycgps i will ask them to prove it

Raptor75

Don't get the dealer involved just use it if you want. Why invite possiable problems.