[T2] Oil weight

[accessys at smart.net]

Synthetics break this rule in that a multi weight synthetic always flows 
at the lowest rate and always lubricates at the higher weight number.
thus a 15W-50 will always flow as though it were 15w and always lubricate 
as though it were a 50


Bob



On Mon, 7 Dec 2015, Jim Denton wrote:

> Date: Mon, 7 Dec 2015 03:36:54 -0700
> From: Jim Denton <2thingswild at gmail.com>
> To: Scott Busby <swbusby at gmail.com>
> Cc: "type2 at type2.com" <type2 at type2.com>
> Subject: Re: [T2] Oil weight
> 
> The VW oil cooling system is designed to allow the oil to get hotter and
> hotter until the viscosity is lowered to where the engine wants it.  Trying
> to get the oil pressure to go up higher than needed can lead to the oil
> running very hot because the oil is being bypassed around the cooler.  If
> the oil light doesn't come on at hot idle or only flickers a bit when the
> engine is idled after a long high speed run on the interstate then the oil
> pressure is good enough. An engine that will run 200*F oil temperatures on
> the highway with 10w30 oil may run 240*F when running a 50wt oil.
>
> On Sun, Dec 6, 2015 at 6:53 PM, Scott Busby <swbusby at gmail.com> wrote:
>
>> Here in Calif I run 20w50. Oil pressure can get a bit low on hot days so I
>> am tempted to run 20w60 in the summer.
>>
>> Scott B
>> 74 VW Bus 1800cc Type4
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