Mazda RX8 - Redex

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Wed 4 Jul 2012 15:20
Mazda RX8 - Redex - Dargem

I have just bought a RX8. It has sat around for at least 4 months before I bought her. She is sounding a bit clogged, so can I use Redex to help flush the system through? Regards

Edited by Dargem on 04/07/2012 at 15:21

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Wed 4 Jul 2012 16:58
Mazda RX8 - Redex - craig-pd130

I wouldn't, because of the possible effect on lubrication of rotor tip seals.

Stick some Shell V-Power or BP Ultimate (i.e. petrol with high detergent content) in the tank and take it for a fast run, which should help clear it out.

Edited by craig-pd130 on 04/07/2012 at 17:00

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Wed 4 Jul 2012 17:11
Mazda RX8 - Redex - RT

Redex used to be marketed as an "upper cylinder lubricant" - is that no longer the case?

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Wed 4 Jul 2012 17:22
Mazda RX8 - Redex - madf

Redex now sell a range of fuel system cleaners.

If that's what is intended by the OP I would read the manual first to make sure there are no warnings about damaging the seals.

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Wed 4 Jul 2012 17:30
Mazda RX8 - Redex - Collos25
Redex= Rocking horse manure.

A very brave man that purchases a used RX8 .
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Wed 4 Jul 2012 17:54
Mazda RX8 - Redex - skidpan
A very brave man that purchases a used RX8 .

Brave or mad especially when its not running properly. Looks like a big bill to me.

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Wed 4 Jul 2012 19:13
Mazda RX8 - Redex - madf

Chances are the seals are gone.. but who knows..?

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Wed 4 Jul 2012 19:19
Mazda RX8 - Redex - injection doc

Big tip with an RX8. Do not start up just to move it and switch ioff again ! may never re-start ! especially in winter. Glad you can afford to run one at 13-21mpg for a 1300 cc car

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Wed 4 Jul 2012 21:32
Mazda RX8 - Redex - Collos25

A better tip is not to buy one they have to be the biggest disaster on wheels once out of warranty.

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Wed 4 Jul 2012 21:55
Mazda RX8 - Redex - Simoncelli58

The guy is only asking for advice ?

It seems you just want to slag his car off !

Help or be quiet please,there's no need for this.

Good luck with your car,try one of the Mazda forums,where you will find specialist knowledge and information.

A fantastic flying machine and a great bit of engineering history !

Remember fuel costs dont bother everyone, just none petrol heads !

And if you buy this type of car, you must love your cars !

Good Evening.

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Thu 5 Jul 2012 06:44
Mazda RX8 - Redex - Collos25

And if you buy this type of car, you must love your cars

You must be a fool there are plenty of sports cars out on the market that will out perform an RX8 in every way and be extremely reliable and as for a piece of great engineering history my God its was a complete disaster.

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Thu 5 Jul 2012 11:07
Mazda RX8 - Redex - Dargem

Thank you all for your advice. There isn't anything wrong with my car as such, I just want to blow her through. I have done the fluid changes etc. Just want to start from a clean sheet as it were. As for owning other or as you guys say "better" cars, I have owned a lot of them and fancied something of a challenge and a bit different.

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Thu 5 Jul 2012 12:37
Mazda RX8 - Redex - craig-pd130

Out of interest, what oil is recommended for the oil injection system for the rotor chamber & tips? Is it synthetic 2-stroke oil?

As a long-time owner of 2-stroke motorbikes, they don't like pootling around on short runs or low rpm: they like to sing and be worked hard. I believe it's the same with rotaries: get them warmed up and work them.

Did you get the 5-speed or 6-speed version?

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Thu 5 Jul 2012 15:13
Mazda RX8 - Redex - Dargem

It is recommended that they have Delexia 5W30 oil. The engines need to be revved a bit inbtween gears now and again. I have the 192BHP 5-speed version.

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Thu 5 Jul 2012 15:36
Mazda RX8 - Redex - craig-pd130

Hope you enjoy her. A while back, a friend had an RX7 II turbo that I had a brief blast in. Great fun :) Unfortunately, he killed two engines because he rarely did more than his 4 mile drive to work :-/

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Thu 5 Jul 2012 20:44
Mazda RX8 - Redex - MikeTorque

As craig said, use Shell V-Power or BP Ultimate, they will clean up the internals nicely. It's a bit of a sensitive engine in the RX8 so it's best to stick to using the best spec. fuels on the market today.

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