Welcome to Our Community

Wanting to join the rest of our members? Feel free to sign up today.

Sign Up

Can I go for 6000 miles before an oil change?

Discussion in 'Gen II Prius Care, Maintenance and Troubleshooting' started by bigheadr, Jul 24, 2005.

Social Buttons

  1. bigheadr

    bigheadr New Member

    Joined:
    Nov 17, 2004
    Messages:
    4
    Likes Received:
    0
    My first oil change was at 6 months and I had little less than 4000 miles on my 2005 Prius. I want to wait for another 6 months for my next oil change but I am going to take a long 3300 mile trip and I am afraid that I might be around 6000 miles for the next oil change. Has anyone gone without changing their oil for 6000 miles?
  2. silentak1

    silentak1 Since 2005

    Joined:
    Jul 1, 2005
    Messages:
    895
    Likes Received:
    28
    Location:
    LA
    Your Vehicle Year:
    2010 Prius
    Model:
    III
    Sure. I used to change my oil every 8,000 miles on my Civic (Mobil1 Synthethic + Bosch Filter).

    What type of oil and filter are you using?

    If you are using conventional oil, I'd recommend a change at 5000 miles.

    If you are using synthethic, you can safely go 5,000 - 7,500 or MORE if you are using an excellent filter (Mobil1, K&N, Amsoil).

    Motor Oil Bible
    http://www.trustmymechanic.com
  3. kirbinster

    kirbinster Member

    Joined:
    Jun 15, 2005
    Messages:
    589
    Likes Received:
    0
    Location:
    Morris County - New Jersey
    Oil change miles are just a suggestion. Most good quality oil can easily go 10,000 miles. Long haul truck drivers almost never change their oil. When it is low they just add. The maintenance shops pull samples and run oil analysis, and only when that analysis shows a problem do they actually drain and refill. I would not give it a second thought going 6,000 rather than 5,000 miles -- especially if most of those miles will be highway miles.
  4. silentak1

    silentak1 Since 2005

    Joined:
    Jul 1, 2005
    Messages:
    895
    Likes Received:
    28
    Location:
    LA
    Your Vehicle Year:
    2010 Prius
    Model:
    III
    Yes, oil lasts longer if you are doing mostly highway.
  5. kirbinster

    kirbinster Member

    Joined:
    Jun 15, 2005
    Messages:
    589
    Likes Received:
    0
    Location:
    Morris County - New Jersey
    One other thing to be aware of - if you have been driving mostly local it is a good idea to check your oil level after you have been at highway speeds for an hour or so. Local driving tends to build up moisture condensation in the oil that flashes off when the engine gets good and hot at highway speeds - thus the level may drop and you may actually be low on oil even though it measured ok when cold.
  6. dwils4

    dwils4 New Member

    Joined:
    Jul 3, 2005
    Messages:
    11
    Likes Received:
    0
    Location:
    Napa, CA
    Why would you want to wait? An oil change is the cheapest form of maintenance. I read some people on this site recommending an oil change after the first 1000 miles on the vehicle. If it were my car, I would spend the $25.

    I have 850 miles on mine and I plan to do a change at the first 1000 miles and every 3000 there after.
  7. kirbinster

    kirbinster Member

    Joined:
    Jun 15, 2005
    Messages:
    589
    Likes Received:
    0
    Location:
    Morris County - New Jersey
    Why will you change it every 3,000? Why not every 2,000, or every 1,000? The point is that 50 years ago 3,000 was a suggested change interval as oils were not as good as they are today. Further, in those old days they suggested changing the oil at 3,000 miles and the filter every other oil change. So, back then you were getting 6,000 miles use out of the filter and were leaving one quart of old oil in the car for 6,000 miles and only truly replacing the portion you drained.

    Most of todays oil will easily go 10,000 to 20,000 miles without breakdown. When was the last time you can document that someone lost an engine due to oil failure???
  8. kirbinster

    kirbinster Member

    Joined:
    Jun 15, 2005
    Messages:
    589
    Likes Received:
    0
    Location:
    Morris County - New Jersey
    <div class='quotetop'>QUOTE(silentak1\";p=\"109765)</div>

    http://www.trustmymechanic.com/motor-oil-bible.pdf

    Above is the direct link for the e-book on oil - the first 20 or so pages are ads, but the e-book is about 177 pages. It talks about the myth of the 3,000 mile oil change.
  9. dwils4

    dwils4 New Member

    Joined:
    Jul 3, 2005
    Messages:
    11
    Likes Received:
    0
    Location:
    Napa, CA
    Good point, you make sense, maybe I need to rethink. Are you running synthetic or regular oil?

    Also good suggestion on checking the oil when the engine is hot.
  10. silentak1

    silentak1 Since 2005

    Joined:
    Jul 1, 2005
    Messages:
    895
    Likes Received:
    28
    Location:
    LA
    Your Vehicle Year:
    2010 Prius
    Model:
    III
    Even regular or conventional oil will easily go 5,000 miles with a regular filter. What about with a "good" filter? Perhaps 6,000 miles but I don't recommend 6,000 miles change for REGULAR oil if you are doing mostly local.

    Synthetic is the way to go. Sure it costs more money but it prolongs the life of the engine more so than conventional oil.

    I'm going 5w30 Amsoil Synthetic XL + K&N HP-1003 oil filter @ 3,000 (Maybe 5,000).

    Others synthetic oils that I'd recommend: Redline & Mobil 1

    Accept nothing else! :)
  11. DaveinOlyWA

    DaveinOlyWA 3rd Time was Solariffic!!

    Joined:
    Apr 13, 2004
    Messages:
    15,101
    Likes Received:
    592
    Location:
    South Puget Sound, WA
    Your Vehicle Year:
    2013 Nissan LEAF
    Model:
    Persona
    you can, under normal circumstances, drive a good 10,000 miles with minimal risk to the engine without changing the oil.

    however, if you encounter abnormal circumstances and with the Prius' track record for reliability, that would include all engine malfunctions, you might have a problem with the warrantee.

    keep in mind that continous driving without shutdown provides the same amount of stress to the engine as a short trip if not less. so in realistic stress terms, what is the interval? 5000 miles at trips averaging 25 miles each making 200 cycles? or one trip of 3000 miles and 199 cycle at 25 miles each or 7975 miles? to your engine both will be the same... now realize that you will have to stop for gas but you get the point.

    several other factors to consider. at this time of year, the weather is nicer so mileage can be extended in that respect, but all there is a higher level of dust to deal with. if you are in an area where that is a concern, you might want to shorten your intervals as it recommended for special high stress areas.

    also, changing your oil a 1000 miles short doesnt allow for "rollover" miles on the next change interval.
  12. silentak1

    silentak1 Since 2005

    Joined:
    Jul 1, 2005
    Messages:
    895
    Likes Received:
    28
    Location:
    LA
    Your Vehicle Year:
    2010 Prius
    Model:
    III
    I wanted that plate for my car "DUALPWR" but it's taken in CA.

    Anyway, DaveinOlyWA provides very useful feedback also. To briefly add-on to the list of "oil lifespan shorteners": stop & go, heat, and excessive high revving
  13. kirbinster

    kirbinster Member

    Joined:
    Jun 15, 2005
    Messages:
    589
    Likes Received:
    0
    Location:
    Morris County - New Jersey
    <div class='quotetop'>QUOTE(dwils4\";p=\"109775)</div>

    I use MobilOne 5W-30 - 3.9 quarts
  14. kirbinster

    kirbinster Member

    Joined:
    Jun 15, 2005
    Messages:
    589
    Likes Received:
    0
    Location:
    Morris County - New Jersey
    I would think that the Prius should be able to go many more miles before an oil change than a standard car for several reasons:

    1.) For many of the miles the engine is not physically on nor even turning.

    2.) The no starter operations mean you eliminate a lot of wear that is caused when the engine is trying to fire at very low speed. I believe the Prius does not introduce spark and gas until the motor has the engine rotating at 600 rpm - this should greatly reduce wear.

    3.) 3.9 quarts is a fairly large volume of oil for such a small engine - remember most cars with much larger engines only use 4 quarts. (not all - my BMW uses 8 quarts) The point is the ratio of oil volume to engine size is very good for this car.
  15. popoff

    popoff New Member

    Joined:
    Mar 20, 2005
    Messages:
    560
    Likes Received:
    0
    Location:
    western NC mountains
    <div class='quotetop'>QUOTE(bigheadr\";p=\"109763)</div>

    I'm confident you could go 6,000 miles+, but remember the warranty calls for 5,000 mile intervals. There's Toyota dealers all over the place, most offering 30 minute oil changes. Better safe than sorry.
  16. popoff

    popoff New Member

    Joined:
    Mar 20, 2005
    Messages:
    560
    Likes Received:
    0
    Location:
    western NC mountains
    <div class='quotetop'>QUOTE(DaveinOlyWA\";p=\"109777)</div>

    Dust removal is a function of the air filter. It takes less than a thimblefull of dust to wipe out an engine. IMHO, if you are concerned about dust, look to the air filter rather than the oil. If dust has gotten by the filter, the damage is already happening.
  17. Tideland Prius

    Tideland Prius Moderator of the North Staff Member

    Joined:
    Oct 2, 2004
    Messages:
    28,304
    Likes Received:
    1,473
    Location:
    Canada
    Your Vehicle Year:
    2010 Prius
    Model:
    N/A
    In this case, we need a true maintenance service reminder for the oil change like the one on the Acura TL. Basically, it will tell you to change your oil when YOU actually need it not because the manual says so. This way, you save the environment by not deposing of perfectly useable oil and you save money by not changing it unnecessarily (based on normal driving).
  18. popoff

    popoff New Member

    Joined:
    Mar 20, 2005
    Messages:
    560
    Likes Received:
    0
    Location:
    western NC mountains


  19. kirbinster

    kirbinster Member

    Joined:
    Jun 15, 2005
    Messages:
    589
    Likes Received:
    0
    Location:
    Morris County - New Jersey
    Don't know exactly how they work, but BMW has had them for years. When you get the oil changed you get 5 green bars. The dealer will not even think about changing the oil till it gets down to two bars or changes to yellow. The change interval is entirely based on this system.
  20. DaveinOlyWA

    DaveinOlyWA 3rd Time was Solariffic!!

    Joined:
    Apr 13, 2004
    Messages:
    15,101
    Likes Received:
    592
    Location:
    South Puget Sound, WA
    Your Vehicle Year:
    2013 Nissan LEAF
    Model:
    Persona
    <div class='quotetop'>QUOTE(Tideland Prius\";p=\"109799)</div>

    in WA State, its against the law to toss used oil. here it is cleaned up, refined, repakaged and reused
Similar Threads: 6000 miles
Forum Title Date
Newbie Forum Buying used Prius 2006 from private 96000 miles. What should I expect? Jan 29, 2014
Gen III 2010+ Prius Fuel Economy Needed new tires at 26000 miles. Sep 30, 2012
Gen III 2010+ Prius Care, Maintenance and Troubles Slow Tire Leak_rear tire_only 6000 miles Sep 16, 2012
Prius c Main Forum after 6000 miles in socal, avg 59.4 mpg May 2, 2012
Gen II Prius Main Forum 2008 - with 46000 miles... Dec 28, 2011