[AT] Detergent oil opinion

[charlie hill]

I'd run modern oil if it was me Dave.  They would have run it back in the 
day if they'd had it.  You've got all the crud out so why not?
Seating the rings is another problem but you already know how to handle that 
if they don't do it on their own.

Charlie
----- Original Message ----- 
From: "Dave Ernst" <shop at cccomm.net>
To: "Antique tractor email discussion group" <at at lists.antique-tractor.com>
Sent: Saturday, January 05, 2008 11:01 AM
Subject: [AT] Detergent oil opinion


>I know we've beat this discussion about detergent vs non-detergent oils in
> old engines and tractors to death but I'm interested in knowing the best
> ideas about this issue in my current circumstance.
> I am currently completely rebuilding a 1939 John Deere model H tractor. 
> The
> crankcase is absolutely devoid of any foreign matter.  But what I have is
> 1939 vintage metals in the head and cylinder, babbit bearings and modern
> metals in valves, guides, pistons and rings. The reason I state this is 
> once
> I rebuilt a Cat 50 diesel, used modern rings in original cylinders, filled
> it with Delo oil and the rings never did seat.(but Bon-Ami forced the
> issue).
> Will detergent oil suffice for this old girl?
>
> Thanks in advance,
> Dave
>
>
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