[T2] Oil weight

[accessys at smart.net]

Boston Bob when I got rebuilt engine from him was adamant to repeathing 
it several times,  DO NOT use synthetics in the engine for the first 3,000 
miles as they lubricate so well the engine will never break in.

I took down a 150k engine that had run nothing but Mobil 1 after breakin 
and the cyl honing marks were still visible

my engine and tranny and brake fluid are all synthetics, as is the CV 
joint grease.

Bob
now if I could only get the #*$&% thing running (Sat story to follow)


On Mon, 7 Dec 2015, MUTS . wrote:

> Date: Mon, 07 Dec 2015 10:09:27 -0500
> From: MUTS . <muts at verizon.net>
> To: type2 at type2.com
> Subject: Re: [T2] Oil weight
> 
> Access Bob will agree with me- I used Mobil 1 in the Roadtrek (8 cyl Chevy 
> 3500) and milage went up 3 mpg. That's thrifty for a tight change oil every 
> 5K engine, but expensive VW owners who change every 3k or less or 1500 mi 
> with no filter, or when oil gets dirty in old engine.  Isn't that the point 
> of synthetic oil (Mobil 1)- it is at the right viscosity to begin with, while 
> regular oil is thicker at lower temps and will have trouble reaching the 
> vital lubrication areas until it is runny enough. It also makes the engine 
> work harder until warmed up, another reason mpg goes up with synthetic oil, 
> where you can take off with less warmup time and engine laboring less saves 
> gas.  The cooler bypass valve hastens the time until it is thin enough, as 
> does the thermostat, which blocks air to the cylinders so the oil will get 
> hotter faster.  So make sure the cooling flaps are closed until the engine 
> reaches operating temps.  If you have failed thermostat/no cable, it is 
> better to use a vice grip on the flaps rod the cable attaches to to keep the 
> flaps closed. Unless you have the wierd replacement thermostat that fail with 
> flaps closed!  BTW, I remember why I had trouble with straight 30 wt- the 
> bypass valve stuck open and the oil cooler seals failed....saw that drip, 
> THEN checked bypass valve #@(*#^%%  Remember that the type 2 busses after 72 
> have a volume control valve also, which regulates oil pressure to the main 
> bearings?
> Using a multivis oil IS better in winter as it will allow a faster warmup 
> with oil reaching the vital areas sooner.  The issue with multiweight oils 
> and air cooled vehicles is that multivis oils fail upon overheating to lowest 
> viscosity- so if all your driving in winter is mostly around town, use it- if 
> mostly highway getting to a ski area, then it is work Mobil 1 or watch those 
> cyl head temps.
>
> MUTS  = Michael's Ultimate Thumb Saver oboe, clarinet support
> 93 Chevy Roadtrek 210P
> 78 VW Westfalia Camper
>
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