Scott, you are right on. I ran the same wt. oils...except Texaco Havoline in my 1.9 "85 GL all those years I was in Alaska and had 205,000 miles on her without a lick of trouble. I did use a block heater in winter.
John Rodgers Scott De Santi wrote: > I<< BTW, isn't Castrol Synthetic 5W-50 more suitable for VW's than Mobil 1 > 15W-50 simply by offering lower viscosity (5W) for winter time? >> > > Hello Volks, > > We've been watching this oil thread roll on for some time now... and > nobody has even asked about the viscocity ranges of oil and how they are > produced. A mechanical engineer friend once told me that special additives > are used that respond to heat and form 'chains' which thicken the oil as it > get warmer. He also told me it was wiser to keep the range of the > multi-weight oil to no more than 30 i.e. 10W-40 or 20W-50. His reasoning was > that in order to make such large ranges like 5W-50, the ratio of additives to > actual oil is too high for optimal lubrication. I haven't done any other > research on this, perhaps the engineer types on the List could provide some > information. FWIW, in Anchorage, I run 20W-50 Mobil 1 in the "Summer" and > 10W-30 Mobil 1 in the other 9 months. > > Yours in the Quest for Knowledge, > Scott De Santi > 86 Vanagon 2WD (Wobbly Bus) > Anchorage, Alaska |
Please note - During the past 17 years of operation, several gigabytes of
Vanagon mail messages have been archived. Searching the entire collection
will take up to five minutes to complete. Please be patient!
Return to the archives @ gerry.vanagon.com
The vanagon mailing list archives are copyright (c) 1994-2011, and may not be reproduced without the express written permission of the list administrators. Posting messages to this mailing list grants a license to the mailing list administrators to reproduce the message in a compilation, either printed or electronic. All compilations will be not-for-profit, with any excess proceeds going to the Vanagon mailing list.
Any profits from list compilations go exclusively towards the management and operation of the Vanagon mailing list and vanagon mailing list web site.