Dan,

Don't waste your money on expensive synthetics for a 1982 diesel. Use Shell
Rotela (I'm not exactly sure of the spelling of that) and change it every 3000
and your filter.. Your engine will be fine and you'll save a lot of money.

There are basically two reasons to use expensive synthetics, 1. your gonna run
the hell out of the engine and push it to the max, 2. You live in a cold as
hell climate (as I do) and you want the engine, starter etc. to last.

Modern blends of conventional oil are so good that synthetics are usually
overkill.

Let the flaming commence...

Bob

Dan Q wrote:

> Which is the best for my 82 Diesel Westy?
>
> I would like to switch to one of these oils, but not sure which synthetic to
> go to?
>
> Also, is 15W40 good for all year round in the mid-atlantic (Virginia) area?
>
> Thanks,
>
> Dan
> 82 Diesel Westy