Michael, I actually misread your original post (I tend to do that a lot ) I thought you were saying that the GTX3 was the 'officially recommended' oil.

I wanna know what the deal is here in Oz with Synth oil as I am overdue for an oilchange after the last track day and I was looking at using RP.

Andrew

 

Andrew...hope you didn't missread this Australian TSB thread . It seems pretty clear, although lots of people will choose to do their own thing

 

Are you shouting me one??

 

One of the biggest problamatic areas of forums is the number of people who misread the post or misinterpret them , you are certainly not alone on that one . so dont worry

Mazda here in OZ has clearly stated the use of a MINERAL based oil NOT SYNTHETIC OR SEMI SYNTHETICS to be used in the RX8 .(5W - 30 )

The Caltex GTX3 is a Mineral oil slightly heavier 10w-40 but cheaper than the MAZDA ONE BY UP TO $ 50 PER 5 LITRES .

Michael

 

Michael, thanks for that because as timbo has kindly pointed out I have been doing a lot of it lately....Patience Grasshopper!!!!

 

I was gonna go to synth as well but after the latest TSB I've decided to go with the flow and just use MRO from now on.

 

ARGHHHHH I want to go back to Synthetic....I feel like I am neglecting my car !

 

If you are overdue on an oil and filter change after a track day, you are!

In my view, we need to remember the 'rules' of oil

1. any oil is better than no oil
2. new, clean oil is better than old, dirty oil
3. any oil with the correct viscosity & temp rating is better an oil with the wrong viscosity/temp rating
4. ...then it's all marketing!

 

Timbo, agreed. I dont believe that I am overdue as such< i just lie to change after the track. Car was serviced just before the track day and I have topped up with a total of 1 1/2 litres of fresh GTX3 since then.

The really annoying thing is that if you want a mineral oil that has a W rating below 15 you almost always have to order it in especially.

Rotor Convert, are you aware that magnatec is synthetic? Or did I miss something again?

 

I have lodged an enquiry with Castrol Re: Magnatec. I'll let you know what I find out.

 

Query about what? Its definately a synth oil:

http://www.castrol.com/liveassets/bp...c_B1766_04.doc

 

Yeah, I got all that. Castrol don't market it as a synthetic though, and it's a lot cheaper than say.....Mobil 1, for example. It's like it's a mineral oil.....with some synthetic magnety sticky oil goop put in. A bit like Coke's secret recipe.

I have asked them....Is it a hydrocracked mineral oil, or a true synthetic? I have also asked them (in light of Mazda Australia's recent bulletin) whether they would recommend it for the Renesis...

 

Ahhhh, I see. Lets see what they say, but I would hazzard a guess that its an err on the side of caution response.

 

Old Post I know

Any one tried using SHELL HELIX Super 20W50 Mineral oil

 

Way to heavy for N/A car, look at maybe Shell Helix Plus 10W-40 or better yet go a semi synthetic like Penrite HPR 5.

 

Second on the Penrite HPR 5. Good viscosity rating. Broke down my needs with the tech guy from their distributor and came up with this suggestion. Its actually a mineral based oil with a number of refining steps thrown in to get the proper viscosity level of 5-40.

 

i just bought 4 litres of royal purple 10w40

might try the castrol edge next oil change

 

Made it to lorn without it, I'm gonna wait and get some Mazda Rotary Oil..

Tsk Tsk.. haha

I read the manual and as it's an on going topic of discussion I'm gonna steer clear of Synthetics for the time being , did but some 10w-30 Shell Synthetic oil, but I doubt I'll use it for the time being.