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The mkiv Supra Owners Club

Comma 10/40 oil - crap for a TT?


hadyn

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Cheap shit, mate. Oil is THE thing you do NOT want to skimp on with these cars. A cheap oil is bad enough, but a cheap semi-synthetic is bad for any Supra, regardless of age or mileage!

 

Get a fully synthetic, every time - look for Mobil 1 or Silkolene Pro S.

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I think you will find that Coma oil is actually produced by one of the major manufacturers, in fact like most of the lesser brands;)

and will meet acceptable quality levels, i have used Shell semi synthetic in most of the cars i have owned and never had a reason to change, my Nissan was running over 140BHP over stock on it ;)

oh and personally i think if your going to change oil at 3,000-4,000 mls fully synth is a waste of money unless your running 500BHP +

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Thats what Im thinking Chris:)

 

TBH I'd have gone straight for the Mobil 1 etc with a lesser mileage car, but Im thinking why bother with 100+ k mile car? As long as it meets spec and is changed regularly why shouldnt it do the job?

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Well my soop has 47 thousand miles on the clock and I was just going to get a well known brand like castrol etc. However after reading threads I found that a 5w40 fully synthetic is what is recomended and there seems to be a lack of that grade apart from the Halfords oil. I didnt seem to sure if I should use halfords own brand oil but when you look at the specs it seems spot on and its not a synthetic blend either. (as far as I know) Apart from that I was thinking Castrol edge 0w40 but I read on here 0w is too thin and can leek past oil seels etc.

 

Could someone in the know please solve this and explain a reason why we shouldnt buy the cheaper halfords oil at half the price that meets the required specs for a 'good oil' and also does 0w40 do any harm or would you stay clear?

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I'm sure that "oilman" will be along soon to wax lyrically about, and extol the virtues of, the expensive oils that he sells.

Undoubtedly if you've got a new car that you intend to keep for a long time, or one that has been modified to produce a lot more power than standard, using the best oil available, and changing it regularly is to be recommended.

 

However if your car is of unknown origin, fairly stock power levels (no more than BPU) and/or high(er) mileage, then starting a regime of using eye wateringly priced, designer oil, is literally throwing your money away down the drain (at the oil recycling centre ;))

 

Personally I'd recommend using a brand name fully (hydracracked) or semi synthetic and changing it, and the filter every 3000 miles

 

Obviously if you're doing trackdays, or live and die at the Pod etc. then you should use the more expensive stuff, but for normal use to and from Tescos and the like, oil meant for Formula 1 cars isn't really required :D

 

As for viscosity, Toyota in their wisdom recommend a 10w30 weight oil, so something around that is what you should be aiming at (10w40, 5w40 etc)

Personally I wouldn't advise the piss thin 0w grade variants, but each to their own ;)

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I use 10/40 semi synthetic usually shell helix sometimes halfords own brand and the stuff that Phoenix Garage in Watford use. I have done about 35 thousand miles of quite hard driving (BPU). I change the oil about every 3.5-4 thousand miles with a new filter. My car has done about 117,000 miles in total.

My car is still going strong, nothings leaked or popped and still has stock twin turbos. I don't even have the blue start up smoke.

 

I personally feel it's not worth getting the expensive oil if you do oil changes every 3-4 thousand miles.

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