The usual going rate at Halfords for the 0-30W fully synthetic Edge alone is £58.98.
Morrisons have a special on the same oil of £7.49 per litre (£37.45 for 5 litres) until 28/4/08.
These prices obviously exclude the filter (about £3 from the dealer for an R50/53 and £7 for an R56 at Westerly in Exeter), labour and oil disposal costs. If someone is offering the entire service for £37 (£33.30 on line) of course they are going to be tempted to substitute the oil for any old 10-40W. 10-40W oil is a fraction of the price of 0-30W and has very different properties. How many people are ever going to notice that the oil has been switched until it is too late?
I love the lines that "they only do what the computer tells them to do", or "we must use old stock first". That should fob off 80% of those people that do notice. If they wind up having to swap the oil for the correct stuff in, say, 5% of all cases, then it could still cost effective for them.
There are so many people hungry for a "bargain" that good sense is often the first thing to go out of the window! |