Thank you one and all for your very valid advice and observations.
I was assured at the time of purchase (at a too good to miss price !) in 2009 that the 25 ltr Duckhams 20/50
would maintain all of its qualities for at least 5 years - as long as it was stored in temperate conditions and the
screw cap was replaced immediately after every use.
Unlike any petrol which as we all know does deteriorate
very quickly.
I think,on balance, I will switch to Morris 20/50 when the Duckhams is exhausted, thank you
Chris for suggesting their
10/50 for winter use, sound advice, as I was unaware that they produced a lighter engine oil for colder climates.
I have had very positive reports from the farming community around here that Morris products are popular.
Millers oils seem to be hard to find in this particular neck of the woods for some reason (except their
petrol treatment products)
Thanks again