I know the subject of synthetic oils has been hashed over in this group
several times, but a good 5W50 synthetic might be the answer. I put it in
an older diesel Mercedes several months ago because I was having some
difficulty starting in cold weather. The 5W50 made a tremendous difference
and has proven a good switch.
M. W. Jordan, Jr.
Greenwood, MS
----------
> From: James Charles Ruwaldt <jruwaldt@indiana.edu>
> To:
> Cc: triumphs@autox.team.net
> Subject: Re: TR6 Progress
> Date: Monday, May 19, 1997 2:31 PM
>
>
>
> On Mon, 19 May 1997, Scott Paisley wrote:
>
> > Many people feel that 10W30 is simply too low of an oil
> > weight. I know that I'll see lower pressure, but on a engine
> > with fresh bearings, it shouldn't drop below 25 lbs with hot
> > oil with 10W30 in my experience. The crank was ground not
> > more than 20,000 miles ago, and has seen light running. Lower
> > oil viscosity would make lower pressure, but I'm seeing some
> > real low readings folks. Before the recent rebuild, oil
> > pressure was 35 lbs hot, with 10W40 in her. Now I'd say it's
> > 15 or so. There's a problem here, and it ain't oil weight.
> I must be missing something here. Obviously, higher oil weight will
> result in higher oil pressure, but does that translate to better valve
> lubrication? If your pump isn't working well enough to get at the valves
> with 10W30, I don't see how heavier oil can make a difference.
> Jim Ruwaldt
> '72 TR6 CC79338U(being restored)
>
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