XJ6 & XJ12 Series I, II & III 1968-1992

Aging oil

 
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Old 06-27-2008, 07:25 PM
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Default Aging oil

I have a 1977 XJ6C, which sees less than 1500 miles use per year. It gets a 20-30 mile drive every month at least, to keep the gaskets intact (and for sheer enjoyment). I use Mobil One 5W30, which, needless to say, looks perfectly clean after a year and a half in the engine. Is there any need to change the oil based purely on the time it has been in the engine?
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1999 XJR
 

Last edited by joycesjag; 11-25-2012 at 08:52 AM.
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Old 06-28-2008, 05:38 AM
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Default RE: Aging oil

IMHO you should change it at least once a year as oil can become acidic with use as and will contain condensation unburnt fuel etc.
 
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Old 06-28-2008, 11:38 AM
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Default RE: Aging oil

I agree, but being as **** as I am, I would say every six months. Just the short trips driving, startup etc....not great for the oil.
 
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Old 06-28-2008, 10:02 PM
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Default RE: Aging oil

DITTO
 
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Old 06-29-2008, 06:05 PM
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Default RE: Aging oil

Thanks for the replies, chaps. I will follow your advice.
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Last edited by joycesjag; 11-25-2012 at 08:53 AM.
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Old 06-30-2008, 11:00 AM
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Default RE: Aging oil

If you get it out every month and get it up to temp and run it for 30+ minutes at steady speeds, you will burn off the vast majority of condensation and fuel from start-up. As long as the carbs are in a good state of tune and not running pig rich I would have no issues with 2 years...I'm assuming the car is kept indoors in a climate controlled environment.
 
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Old 06-30-2008, 11:07 AM
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Default RE: Aging oil

As cheap as oil is, (sorta speaking)why go the two years?..Every six months is a good measure..But if you burn the gas less..then add the correct amount of Stab-Bil to the gas to keep it fresh.

 
 
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