Quote by the fat controller
The guys that look after our fleet of vehicles do my servicing and I asked about changing the filters every year and their answer was if you want to waste money its up to you, they recommend going by the mileage as the yearly thing is more for the dealers to make money than do any good.
I have to agree with this. I can see absolutely no need to change it every year but I am glad this topic came up because my MH has just turned 37000 miles and I have no record of the filter being changed.
If you are playing around with BIO or heating Oil then there is a bigger need to change the filter but not with ordinary diesel.
Each to their own though.