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How often should I change oil?

Discussion in 'General Explorations!!' started by scattermaster, January 2, 2005.

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    1. scattermaster

      scattermaster New Member

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      My owners manual says 7500 mi between oil changes I think. That seems way too long. If I change at 3000, am I just wasting oil? Also, are the new synthetics really better?
       
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    3. BeauJ

      BeauJ Moderator Emeritus

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      Due to work/school, lately I've been taking mine to a trusted oil change shop to do it. I usually do it myself, but I'm just too busy lately. I usually go 5-6k on regular. They say 3k, but that's really not alot. Sythetic they say 6k, but I really don't know how far you can go because I don't run it.
       
    4. X~FACTOR

      X~FACTOR Name is Ray

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      No.
      At $1 per quart it's a cheap insurance.

      Yes.
      So I've heard. Personally, I am not convinced that is worth the money though.
       
    5. jayhawkexplorer

      jayhawkexplorer Well-Known Member

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      Every 3 months or 3,000 miles, religiously. I am a firm believer that doing this and using a good brand of normal oil like Castrol and a good, inexpensive oil filter like Motorcraft is the single best piece of maintenance you can do for your car. Personally, all the synthetics/blends/high mileage oils are wastes of money in an engine designed for regular oil. If I was driving a BMW designed to run on synthetic, I'd feel differently but with these trucks it seems useless to me.
       
    6. mrboyle

      mrboyle I Drive By Brail Moderator Emeritus

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      Modern oil's can easily go 5000 miles between oil changes with out any problems. Oil never loses its ability to lubercate (unless it becomes a soild), it only gets dirty and the stailiers/ additives will break down over time.Thats why you need to change it. IMHO on a daily driver synthetic oil has no added benifits. There are others that don't share this opinnion and I'm sure they'll tell you, but I have seen engines last just as long on dino oil as they do on synthetic.
       
    7. VOATMJ1

      VOATMJ1 Active Member

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      I use synthetic oil, and it has quieted by engine down 10 fold, one advantage of synthetic. Another is in cold climate states, synthetic oil does not thicken up like regular oil, whichs equals to faster lube time for the engine, and easier starting in sub zero temps.

      If you live in a warm climate state, then regular oil will probably suffice for you, as you don't have to deal with sub zero temps in winter and summer temps should not be a factor.
       
    8. Eneurb

      Eneurb Active Member

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      I use synthetic oil and a Motorcraft filter, and still change my oil every 5000 km (3000 miles). Since switching to synthetic oil, I have found an increase in fuel economy of nearly 2 mpg. My main reason for switching to synthetic was the cold winters in Canada, but I've certainly found other reasons to use it.
       
    9. MONMIX

      MONMIX I fix dents Staff Member Moderator Elite Explorer

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      Mobile One full synth every 5,000
       
    10. ExplorerSportNu

      ExplorerSportNu Well-Known Member

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      Amen, I change every 3000 on mine though, but Mobile one all the way
       
    11. MONMIX

      MONMIX I fix dents Staff Member Moderator Elite Explorer

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      it is easier math with the 5 :)
       
    12. Interstate

      Interstate Active Member

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      I gotta ask this:

      I live in New Mexico where the summers regularly get to the 90's, and since it's the desert, gets down to the 40's at night (in the summer) This winter is unusually cold getting into the 30's, but will climb back to the 50s later in the week. Since I'm in college, I usually let my X sit for at least 2 weeks time, as I don't usually have anywhere to drive. I run 86 octane, on a bone stock engine. (hopefully a K&N replacement soon, if I ever get around to it) I change the oil about every 3000 miles; sometimes other things use up my time. Would I benefit at all from synthetic? Would a blend work better? Or should I just stick to regular?
       
    13. MONMIX

      MONMIX I fix dents Staff Member Moderator Elite Explorer

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      I am of the thought full synth will always be of benefit.
       
    14. 00XLS

      00XLS Well-Known Member

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      I go about 4K with mobil one syth. maybe 5K if I'm at school for a while.
       
    15. huskyfan23

      huskyfan23 Rah no Hans Bwix

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      I change every 3 months and replace with synthetic each time. Synthetic isn't much more expensive and I think it'll be worth it in the long run.
       
    16. JGAMBLE

      JGAMBLE B

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      I run mobil1 and a good oil filter(mobil1 or k&n), and I change my oil every 8-10k. At 128k she still runs like new. If you run syn and change it every 3k you're wasting your money. Syn doesn't start breaking down until much higher in the mileage.

      :chug: :chug:
       
    17. jayhawkexplorer

      jayhawkexplorer Well-Known Member

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      Not that much more expensive?? I get Motorcraft oil for $1.65 a quart, Mobil One goes for $4.99 a quart. That's a $35 oil change with Mobil one versus around $12 for Motorcraft oil/filter.
       
    18. aldive

      aldive Elite In Memoriam

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      A question for those of you who dump their oil at 3k intervals - have you had an oil analysis performed on this oil to determine if it needs to be replaced at that interval? If not, do you realize that you might be disposing perfectly good oil.

      Extended OCI ( oil change interval ) has been proven often. I have gone up to 20k miles on synthetic oil with excellent oil analysis reports.
       
    19. Jason94sport

      Jason94sport Well-Known Member

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      I change the oil & filter every 3K miles with regular 10W40.
      On my new Acura I change every 5k miles with syn 5W30.
       
    20. VOATMJ1

      VOATMJ1 Active Member

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      Speaking of synthetic oil, my oil change place when I asked for synthetic oil, early in the X's life, they installed Castrol Syntec. I see a lot of folks here talk about Mobil 1. Is there a REAL difference between the two? If so, do I need to switch to Mobil 1? I have received very good results with the Catrol Syntec and have run it exclusively in the vehicle since new....well when I got to 15,000 miles I switched to synthetic, and now have 50,000 miles on the clock. If there is a benefit using the Mobil, I will switch. Thanks.
       
    21. huskyfan23

      huskyfan23 Rah no Hans Bwix

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      I never got it tested, but the oil is always dirty and stinks so that's reason enough for me to change it.
       
    22. Rhett

      Rhett Let Them Eat Cake Elite Explorer

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      In the past, I have sent my oil off to Blackstone Labs and Oil Analyzers, Inc. for oil analysis. Oil analysis told me that my oil was fine after 3000 miles. So now I go 5000+ miles. I have gradually increased the oil change interval. Right now I'm at about 7000 miles and I am going to change soon and send off a sample for analysis to see how the oil is doing. I run AMSOIL.
       
    23. aldive

      aldive Elite In Memoriam

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      Syntec is a quality oil as is Mobil 1; doubtful you would find any significant difference in the two, however, only an oil analysis would show you that.

      I used to use Mobil 1 and made the switch to Amsoil Series 2000 0 w 30 oil and did achieve an increase in mileage after the switch. Further, oil analysis data proves the effectiveness of the Amsoil oil during extended OCI.
       
    24. aldive

      aldive Elite In Memoriam

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      You are definately approaching the OCI delema in the proper manner. You will probably see that you can run the Amsoil up to 20 k miles with good results.
       
    25. aldive

      aldive Elite In Memoriam

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      The proper way to determine if you are wasting the oil at that short OCI, have an oil analysis performed.

      Are synthetics better? The answer to that question is a resounding YES.
       
    26. aldive

      aldive Elite In Memoriam

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      What do you base that rather bold assessment upon?
       

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