When to change oil
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Cadillac DeVille 1985 to 2005 including:
1985-1992 Fleetwood, 1993 Sixty Special, All FWD Forum Discussion, When to change oil in Past Cadillac Vehicle Discussion; My 2002 DTS has 60K miles and has been driven very little since the oil was changed about 15 months ...
  1. #1
    vettman is offline Cadillac Owners Member
    Automobile(s): 2002 DTS
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    When to change oil

    My 2002 DTS has 60K miles and has been driven very little since the oil was changed about 15 months ago. I use Mobil 1; the oil monitor shows 92% should I change the oil now? In other words should I be changing on a calendar basis instead of mileage/oil monitor basis?

    Thanks

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  3. #2
    MoistCabbage's Avatar
    MoistCabbage is offline Cadillac Owners 10000+ Posts
    Automobile(s): Crimson 2001 Seville STS, 1990 Seville (RIP)
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    Yes. Change it every 12 months, regardless of mileage or oil type.

  4. #3
    vettman is offline Cadillac Owners Member
    Automobile(s): 2002 DTS
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    Re: When to change oil

    Thanks for the quick reply; I'll be changing it later today before we leave for FL.

  5. #4
    cdlacman is offline Cadillac Owners Member
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    Re: When to change oil

    I only put about 5000k a year on my vehicles and I change my oil every April and November, I think its good to get rid of the winter oil and have fresh for spring/summer. IMO.

  6. #5
    Submariner409's Avatar
    Submariner409 is offline If it won't run, chrome it
    Automobile(s): 2002.5 F55 STS/65500mi, 2004 Ford F150 SuperCab4x4
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    Re: When to change oil

    ^^^ Same here - relatively low mileage the past 4 years, so I do the oil/filter sometime in March. The manuals (service and owner's) say to follow the OLM or once a year, whichever occurs first.

    vettman, This is strictly personal experience and opinion, but you might want to find a 20 oz. bottle of Chevron TECHRON and dump it in the tank with a fill-up of a Top Tier gasoline - the first day of interstate running will be perfect for a thorough fuel system cleanout run ......... Google "techron" and "top tier" for reading info.

  7. #6
    vettman is offline Cadillac Owners Member
    Automobile(s): 2002 DTS
    Join Date
    Apr 2004
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    Re: When to change oil

    Roger on the Techron; I was planning to do this; think I have two bottles left from the case I bought at Costco. I'm just in from changing the oil, so should be set for the trip south.


    Thanks to all who have replied.

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