Quote Originally Posted by Nick Graves View Post
Fascinating stuff - which makes of truck do you run?

VTEC apparently can be quite hard on oil; they seem to dirty it quickly at higher mileages (hydrocarbon by-products blowing by the rings, I have read) which means I often give the cars an interim change, despite ridiculously low mileages.
That particular example was Mercedes Benz 1843 Actros Vee 6's. 430Bhp, fully automatic. A great truck no doubt.