On 7/24/05, Susan Powell <spowell1681@earthlink.net> wrote:
> I have a recent purchased '87 wolfsburg weekender with 98K on original engine.  No leaks, runs good.  Avg MPG on highway is 18+.  Previous owner used Mobil 1 Synthetic 10W30 which I keep in it also.   I drive it daily but concerned that oil may be too thin for hot weather in SE.  (and it is damn hot right now)  Someone told me the synthetic oil also retains more heat than regular oil.   Thanks for your insights.  Steve>

Steve,

I would highly recommend that you go to Mobil 1 15W-50, as the 10W-30
is far too thin to maintain a dependable oil film.  I'm using the
15W-50 Mobil 1 myself in my van, though I do alternate with RedLine
20W-50, because I got it on sale ($3 a quart!).  I also only use Mahle
or Mann oil filters.

-- 
Don in Reidsville, NC
1986 Kawasaki Concours
1988 Vanagon GL (Sylvia)
"Why do they call it a fixed income, if mine is always broke?"