madmechanic

i live in new jersey i shouldnt see -30 degrees out probly just close to -10 currently i am running valvoline 5w30 non synthectic i hear all differnt things from people about what oils to use for the renesis and how some will lead to short engine life anyy suggestions

Silver06

Hi.

This topic has been covered about 10 million times! There still is not any consensus...

As you know, Mazda specifies 5-20 (non-synth) for the USA and Canada.

In the rest of the world, Mazda allows for a range of oil...

For example, this was recently in the Australia section:

If you follow the owner's manual for the '09s in Australia, then you will see that Mazda likes 10w-40 or 10w-50 for all seasons.

You could find that thread here: RX-8 Series II Owners Manual On Engine Oil

turborx8

iTrader: (1)

I suggest royal purple 5w30 synthetic.

You will need the OMP adapter and some idemitsu 2stroke rotary oil and a reservoir but at least you know EXACTLY how much oil your OMP is using.

Mine barely uses any at all so I am forced to premix to make sure my apex seals are well lubricated. I mix between 4oz-8oz for every full tank of gas, depending on how hard I decide to drive the car.

I8U

iTrader: (1)

I suggest using the search button...