Re: oil change intervals

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Old 18 Aug 2005, 09:53 am   #1 (permalink)
glennsmga@operamail.com
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Default Re: oil change intervals

Regarding your information regarding oil change intervals: I have
been using synthetic oil in all my vehicles for about 10 years now.
Synthetic oils are VASTLY superior to regular motor oils, and
outperfom them in ALL ways! Synthetic oil does not thicken and turn
to sludge in high heat conditions. Nor does it turn to jelly in sub
zero temperatures. Synthetic oil does not deteriorate like regular
motor oil. Synthetic oil DOES however retain dirt , just like regular
motor oil. Therefore, I change my synthetic oil only once a year,
however, I change the filter twice a year, and re use the oil that is
trapped in the filter. It simply gets dumped back in through the
valve cover cap. My vehicles include a 1956 MGA roadster (My pride
and joy) A 1990 Ford Tempo (wife's car) and a 1994 Toyota Camry
(poor man's Rolls Royce) All these vehicles have been running
syntheic oil for the last 10 years, with oil changes only once a year,
and filters changed twice a year. These engines run as well and as
strongly as 10 years ago! I have had NO engine problems whatsoever.
The MGA that I have owned for 25 years needed regular valve
adjustments when using regular motor oil. Since switching to
synthetic oil, I have not needed to adjust the valves, because the
rocker shaft and rocker arms are not wearing! I attribute this solely
to the synthetic oil, and highly recommend it. The only time I would
not recommend use of synthetic oil is during new engine break in, or
if an old engine has been using non detergent motor oil for many
years. Cheers! glennsmga@operamail.com
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Old 18 Aug 2005, 04:06 pm   #2 (permalink)
davidj92
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Default Re: oil change intervals

glennsmga@operamail.com wrote:
snip
Synthetic oil does not thicken and turn
> to sludge in high heat conditions. Nor does it turn to jelly in sub

snip

Glenn,
I too have been using sythetic oil for appx nine years now and really like
it. I agree with all of your assessment of synthetic oil except the above
quote from your post. Heat does not cause sludge, oil not being brought up
to full temperature so it can evaporate the moisture out of it causes sludge
and it's related acids. Heat causes oil to coke or cook into a crusty
coating on the engines internals.
HTH, davidj92


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Old 21 Aug 2005, 07:47 pm   #3 (permalink)
zonie
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Default Re: oil change intervals

Good to hear from some guys who know synthetics as I do . I wouldnt put
anything else in any engine I own. There are still people who change their
oil every 3mo. ,3000mi. I change my oil every 6mo 6000mi. And I fully
agree with better mileage, no sludge and longer engine life. I recently
helped a friend here in Phoenix change the cam cover gasket on his 91
Corolla with 220,000 miles on Mobil 1. No surprise to me the underside of
the cover and entire head looked new and this car has never needed a valve
adjustment. 5 or 6 dollars a quart for oil suddenly looks really cheap.
Scott

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