That reminds me of reading a forum over on the other side of the pond recently. A car owner was going to great trouble to assess the quality of his engine oil as the miles mounted. A very professional attempt over around 10,000 miles.
Of course that`s considered by some in the US to be an incredible mileage between oil changes. It was the best, Mobil 1 too.
He sent samples off every so often and there were charts of wear metals and so on. Then I noticed his top up schedule. Six `quarts` (whatever they are;-) had been added in total...
There was no comment on that and everyone seemed to regard it as normal.
You had this mental image of `consumption` of gas and oil - a relatively new US motor built to 1940`s engine clearances.
Frustrating really - the tech interest i had in the oil holding it`s quality - negated by this constant flood of new oil being poured in the top. I was left with the thought that, on the `king Arthur`s axe` principle - that the oil would actually last forever with just filter changes - but again no one had twigged that.
Well.. I know not really.. Wouldn`t want the odd `perpetual` sump molecule, turning to sludge ;-)
Edited by CL Grease on 09/09/2010 at 16:32
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