OilSpecCharts from 83.5 & 90 OwnersManuals https://picasaweb.google.com/109991183317103413704/March132013 Note that each *w-50 has *w-40 right along side it ~ I think it is interesting that those w-50s & w-40s share the same HighEndTemp & the 10w-40 & 10w-30 also ~ to be correct all the diff' grades should have their own range bars ORR ~ DeanB
On 13 Mar , 2013, at 4:40 PM, <mcneely4@cox.net> <mcneely4@cox.net> wrote: > ---- OlRivrRat <OlRivrRat@COMCAST.NET> wrote: >>> Dennis Haynes wrote: > >>>> The *w-50 gives that viscosity edge the water boxer needs. >>> > OleRiverRat wrote: > >>> I guess if you are talking about a really high milage H2OBxr >>> that >>> has not been well maintained that is probably true ~ otherwise I >>> have not seen any info that would cause me to lean toward that >>> philosophy. >>> >>> ORR >>> ~ Dean > > How about the VW Vanagon factory owner's manual? That is the > viscosity recommended there for all except extreme temperatures on > either end. At the high end it recommends straight 40 weight, at > the low end a lighter oil, I do not remember specifically, but maybe > 10 or 20 weight. > > What waterboxer engines are not high mileage? After all, the newest > one around is 22 years old. > David McNeely |
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