I have been running synthetics in my Vanagons for 25 years.

15-50 when I could get it, the last few years 5-40 "diesel oil"

No oil pressure problems, no engine failures.

Mark

Tyler Hardison wrote:
> Most oils are synthetic blend these days right?
>
> On Thursday, August 13, 2015, Jim Felder <jim.felder@gmail.com> wrote:
>
>> You will probably be OK when you run the 20W50. I don't think I would run
>> synthetic in a water boxer (covers head awaiting hail of greek fire, stones
>> and arrows). Just Castrol or other good petroleum. The most mileage people
>> have ever gotten out of them that I can recall have run petro. In any
>> event, just put the correct weight in and then see if you should start
>> saving. The money you save not buying synthetic should do it.
>>