Joe,
On the other hand if the oil pressure is measured at the oil gallery
(down stream from the filter) and the oil pressure relief valve is at
the pump discharge then I would guess that the Phram has a higher back
pressure than the Wix.
Dave (but what do I know?) Massey
Joe Curry <spitlist@gte.net> writes:
>Robert,
>I can't for the life of me understand how an oil filter will do that.
>The only thing that I can rationalize is that the Fram does not offer as
>much back pressure as the WIX and the extra back pressure is realized as
>the appearance of higher oil pressure.
>
>If this is the case, I wonder which is better for the engine???
>
>Regards,
>Joe Curry
>
>Robert Allen wrote:
>>
>> I tramped the TR6 really hard a couple of weeks ago and then noticed the
>> oil pressure had dropped from 60+ to 35 pounds. Bummer.
>>
>> And then I rememebered that I had changed the oil and this time replaced
>> the Wix cartiridge oil filter with a Fram PH3816. And then I also
>> remembered that one of the gods on the MG list said Fram filters were
>> crap and to stick with Napa or Wix.
>>
>> So this weekend, I stopped by O'Reilly's and picked up a Wix 51374 and
>> tossed it in the boot. For the next 60 miles I carefully watched the oil
>> pressure. 35 pounds and fading in this heat.. While I was stopped at a
>> friends house, I swapped the Fram for the Wix.
>>
>> No oil change. Same day. Same weather. Same roads. Same speeds.
>>
>> The TR6 happily jumped right back up to the 60-65 psi range it has
>> always had.
>>
>> I'll be damned. Nothing I do ever works out that good!
>>
>> Bob Allen, Kansas City, '69CGT, '75TR6
>> New CW Fav: "I'm so miserable without you it's almost like you're still
>> here."
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