[T3] I tried seaching on Samba on the subject of engine oil .

[William J]

I broke it in on 40 weight Kedall before it changed into something else . 
Used to get an oil light flicker at idle on hot runs.

 From what I can find in conventional oils Valvoline 10/40 at least states 
there is zinc on their site Castrol 20/50 GTX does not list it at all.

 To get anything else there is lucas at autozone. $20 pint. If I go by my 
VDO pressure gauge it reads higher than 10 PSI per 1000 RPM. I can't say 
it's very accurate.

 Thought next change I would try the Valvoline 10/40 and see what that 
offers. I imagine it's at least as good as if not better than Castrol GTX.
----- Original Message ----- 
From: <Bobsnotch at aol.com>
To: <type3 at vwtype3.org>
Sent: Monday, October 16, 2017 5:34 PM
Subject: Re: [T3] I tried seaching on Samba on the subject of engine oil .


> In a message dated 10/16/2017 1:15:25 A.M. Eastern Daylight Time,
> catnine09 at dslextreme.com writes:
>
> Now  since I chose all by my self to get caught up in this thought process
> , can't  say I need the zinc content required for flat tappet lifters , 
> not
> sure ,seems  to run the same as it has pep wise and I hear no bearing 
> noise.
> Actually you do need to worry about it, because the oil companies  took it
> out of the oil starting around 2000. Without the ZDDP (zinc) you're 
> wearing
> the lobes off the cam. It won't wear or cause wear to the engine 
> bearings,
> but it will cause wear metal to metal contact surfaces.
>
> At this point since you broke the engine in with 20W50, I'd keep  using 
> it,
> although I'd look for an oil WITH ZDDP in it. Your other option is to  add
> the ZDDP to the oil. You can add Lucas, or go with something else like 
> GM's
> EOS (Engine Oil Supplement). I use EOS, and it's not cheap at 30 bucks for
> a  small pint container (I add a 1/2 pint with every oil change), but it
> beats  taking out the engine, and tearing it down to replace the camshaft. 
> I
> think of  it as cheap insurance. I've put about 12K on it in 10 years of
> summer only  driving, and that includes some hard miles in the middle of 
> summer
> going to and  from a Type 3 Invasion.
>
> The reason for the removal of zinc (ZDDP) was it clogged catalytic
> converters, and manufacturers switched to roller cams and away from "flat 
> tappet"
> cams. This is what the GM dealer told me, and can be found researching
> oils, so it's not just something I'm pulling out of my butt. :-)
>
>
> Bob 65 Notch  w/Factory Sunroof converted to  IRS
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