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Re:Speaking of Mobil 1



> Should I still use 15W-50 or should I go to a lighter weight?
> What do turbo owners on the list do in the winter?
>

I used Mobil 1 10W30 in my previous turbo'ed car. It's still going strong @
150K miles (no turbo work or any engine work beyond the valves replaced
when the timing belt broke @ 32K miles).

In VERY cold climates I used 5W30 (this car  ran Death Valley at 126F in
the summer and Mt St. Anne at -50C in the winter). I don't see any reason
not to use the 15W50 in the summer, but you can probably get by fine with
10W30 all year in Boston. I stuck with 10W30 in the other car because the
manufacturer specifically stated the turbo had to have 10W30 (or 5W30 in
winter), and it had a 50K powertrain warranty.

Steve P - 98.5 A4TQMS (Mobil1 10W30) - 97 Passat GLX (same)- 94 Kawa ZG1000
(Mobil 1 15W50)