[AT] STP

[John Grant]

Hello Ralph. In repy to your STP question. Think about it for a minuet. 
Higher oil pressure with an additive means thicker oil. This does not 
replace worn metal. Are you after just higher oil pressure or a cheep 
overhaul? A ok temporary fix but not for long haul. In My Opinion.
 As cold as it gets around your barn I wouldn't think you'd want thicker 
oil! Grin/Grin.
 I guess I'd look at the oil pump first. See what it's output and pressure 
is. Is it adjustable like the John Deere's are?   No easy fix like a 
poptop!.  jg
----- Original Message ----- 
From: "Ralph Goff" <alfg at sasktel.net>
To: "Antique tractor email discussion group" <at at lists.antique-tractor.com>
Sent: Sunday, February 25, 2007 1:00 PM
Subject: [AT] STP


> Not sure if I may have asked this question before but I'm wondering again, 
> how many , if any of you, use STP oil treatment in your old tractor 
> engines? The reason I ask is that my Cockshutt 40 has lower oil pressure 
> than I like to see. It seems to be gradually dropping as the years go by 
> even though the engine is excellent and burns no oil. At full throttle 
> running the snowblower it has oil pressure reading just on the line 
> between normal and low. It used to be up in the o to r part of the word 
> normal a few years ago. I don't know if the oil pump is wearing out or 
> bearing clearances are increasing. I do regular oil and filter changes and 
> have always used the same 10w-30 oil since the engine was rebuilt some 27 
> years ago.
> I'm wondering if some of that good thick STP oil treatment might increase 
> the oil pressure or at least provide improved lubrication to compensate 
> for the lower oil pressure?
> Just looking for opinions here.
>
> Ralph in Sask.
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