I have a Focus with a DV6 derived 1.5TDCi. In fact it is a DV6, the only difference is a slightly smaller to reduce it to 1.5 litres for the Indian market as they get heavily penalised for engines over 1500cc.
If you google DV6 Turbo failure or DV6 Oil Issues you will uncover hundreds of threads about the 1.6TDCi/HDi PSA/Ford partnership engine. The tiny 3.8 litre oil capacity simply cannot cope with long service intervals and the oil gets saturated. There's an oil filter inline with the turbo (non serviceable item) which eventually gets blocked as a result and pop goes the turbo.
Knowing my car was a basically a DV6 when I bought it and that 12 Month / 12,000mile oil changes were pushing the engine a bit I decided to stick to 6 month / 6,000mile intervals. I'm doing the 'in between service' oil changes myself and using a reputable local to do the services.
I've always been told only to use genuine oil filters as they are of a much higher quality than even the best OEM manufacturers. I've been told this hundreds of times by many different people.
I went out to Halfords and got 4litres of oil on trade for £11 and popped to Ford for an oil filter and sump plug washer.
Ford gave me filter number 1.1) Genuine Ford Filter - £14.72
I must admit I was really dissapointed by the quality. Filter is branded 'Mahle'. I wasn't expecting Ford, but Motorcroft or Bosch at least! A paper bottom and only single pleated in one direction. So I went and purchased another...2) Genuine Citreon/Peugeot Filter - £12.42
Exactly the same as the Ford one. Both branded 'Mahle'. Both have the same part numbers.
So I decided to pop on Euro Car Parts and see what they had to offer...3) Bosch Oil Filter - £7.91 delivered
The exact same filter. Same feel, same weight, same size box. However it is branded 'Bosch'. :roll: 4) Mann Oil Filter - £6.40 delivered
Once again. The same filter. Branded 'Mann'.
Convinced there must be better alternatives out there I tried Halfords.5) Filtron Filter - £6.99 Trade
I see a pattern emerging. Branded as 'Filtron'.
I decided to try one more filter before handing in the towel. I popped to my local Motor Factors and picked up this...6) Wix Filter - £8.04
Branded 'Filtron' :lol:
All the filters together...
Even the boxes are identical. Just different printing...
I've only ever bought canister filters so you cannot see what exactly is inside them.
I'm starting to wonder if I've been wasting my money buying genuine the last 5 years because the budget ones seem identical to ones costing over twice as much. Why do people always seem to warn against buying aftermarket oil filters?
It really does seem like all these have been made in the same factory (all made in Austria) and branded to suit. :roll:
I'm sure there are bad filters out there but it's good to know in my application at least I can go and buy the cheapest filter out there.