look at it this way, if thay have said they can not fault it, trade it in as there is nowt wrong with it in thier eyes!:D

Ive been driving it all day and have had maybe 2 slightly clunky changes into 2nd, most of the day it's been perfect. :confused:

Ive been offered 5500 on trade in at every garage ive been too or 5400 cash for a straight sale, but i only tried one garage for that so far.
Ive seen it north of 7500 on the forecourts so im hoping to stretch them up to 5800 then ill keep the cash and buy something cheaper that i dont have to worry too much about as i don't drive all that much anymore.

Would an oil change help? It's seeming like a cold issue but i dont know. If it's fine i will sell privately.

Well the last week or so in the cold it's making a really bad clunking noise which gets worse with engine speed, the noise goes away completely after it's warming up a bit, any advice or is this going to get worse and worse?

Well sounds like a proper tappet noise but much louder, it only really does it at partial throttle, but lasts about 30 seconds, then goes. The oil looks blackish but was supposidly replaced at the service, but i have lost faith in them after some horror stories.

Is the oil too thick and taking a while to run round the whole engine? should i get it replaced? The noise hasn't got any worse.

has it been main dealer serviced?
i see its a TDCI so i assume the mazda uses the ford engine, if so these have to run on 5w/30 fully synthetic oil.

http://www.honestjohn.co.uk/forum/po...ex.htm?t=58641

that may help too

It was serviced at an independant garage last, about 800 miles ago. Before this i had no issues with the engine, but i thought the cold might have caused issues?

Thanks for the link.

Sounds like theve put wrong oil in it mate tbh, ive recently done a zetec focus that kept stalling due to wrong oil in it

So could there be major damage now? Or would an oil change possibly sort it out?

The 6 diesel uses mazdas own engine,pretty bombproof.The garage that serviced it 800 miles ago what oil did they use?should have been 5/30.

Don't know, the service sheet just says oil change.

well, I think you got nothing to lose by getting the engine flushed, filter changed and put oil that you supply, into the engine, then if you use the correct oil and it still does it, then you know it wasn't that.

They confirmed they used 10w40 semi synthetic. But said it was recommended by Mazda and is on their system to use.
Any advise on this or should i book it in for 5w30 fully synthetic at another garage?

Cheers

Defo put the 5/30 in it mate, even Kwikfit should put in the correct oil