Changing oil today and filters!!!
I was as advised the following-:
When you do an oil change to use a little diesel in the oil tank between the empty and re-fill (warm it a little then empty it) and re-fill with new oil to help clean it out?
Is this correct an a good idea???
NO, if you really need to use either a flushing additive or flushing oil, diesel is neither and may leave enough residue to cause problems, one home brew method is to use a litre ATF in the sump with the old oil for 20-30 miles of light driving, but it still needs a double/triple change to get rid of the residue (~5-15% of the total volume isn't drained).
One supplier:
http://www.morrislubricants.co.uk/productinfo.asp?v06c41q7p6=FMFNote they don't recommend a double change, but I'd still do one, and its a NO LOAD oil as its thin and won't support the bearings under-load...
Niel, part-time tribologist.