~had a bit of a query a few weeks ago concerning engine oils especially when towing caravan etc;Thinking when towing caravan (1 ton +) engine obviously get's hotter,so was thinking would it be of benefit having a different oil~~Pm'd Ady (Northern Bongolier) & he & Lazy B (i think it was) were doing some test's on this particular subject.
Ady reckon's from test's that 5w 40 oil was better for towing than your standard 5w or 10w 30.
Anyway i've just come back from a 260 mile round trip from "Forest of Dean" using the same route that i've used quite a few times this year (M1~M42~M50) with similar temperatures eg 20c~~before my oil change the temp in the Bongo went right round to the H (on slow incline's)~changed my engine oil (to 5w 40) & filter last week before we went on the same motorway's & temps (in Bongo) were quite a bit below what they've been all summer~so to me it's quite obvious that 5w 40 is better when towing.
So thanks Ady & Lazy b for good results testing the oil's.
This might be all in my mind but the Bongo seemed to pull better uphill as well.
