Advertise on Bikeforums.net



User Tag List

Page 1 of 2 12 LastLast
Results 1 to 25 of 29
  1. #1
    la vache fantôme phantomcow2's Avatar
    Join Date
    Aug 2004
    Location
    NH
    Posts
    6,266
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    How often will I need to change my oil now?

    On Saturday, I plan to change my car's oil for the first time (first time I will have changed oil that is). THe previous owner used a synthetic blend oil from Mobil 1. He said he changed it every 7500 miles. I think he just went by the bottle of the synthetic blend oil, it says "Guaranteed for 7500 miles". So I decided to spend the 6 bucks a quart and got fully synthetic. It's twice the cost, but my car doesn't take much oil, so I figured I might as well.

    I am told fully synthetic motor oil will last even longer. What is a fair estimate for how long I can keep this oil in my engine? Assume normal driving conditions, not extreme dust or anything.
    C://dos
    C://dos.run
    run.dos.run

  2. #2
    la vache fantôme phantomcow2's Avatar
    Join Date
    Aug 2004
    Location
    NH
    Posts
    6,266
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I guess I should also mention that I bought a new fuel filter too...
    C://dos
    C://dos.run
    run.dos.run

  3. #3
    Señor Member USAZorro's Avatar
    Join Date
    Oct 2004
    Location
    Carlisle, PA
    My Bikes
    1954 Hetchins M.O., 1959 Viking Severn Valley, 1970 Raleigh Pro, 1972 Fuji "The Finest", 1974 Raleigh Superbe&Comp, 1976 Raleigh Team Pro, 1994 Trek 830 MTB, 2000 Bob Jackson Arrowhead, Unicycle
    Posts
    13,034
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by phantomcow2
    On Saturday, I plan to change my car's oil for the first time (first time I will have changed oil that is). THe previous owner used a synthetic blend oil from Mobil 1. He said he changed it every 7500 miles. I think he just went by the bottle of the synthetic blend oil, it says "Guaranteed for 7500 miles". So I decided to spend the 6 bucks a quart and got fully synthetic. It's twice the cost, but my car doesn't take much oil, so I figured I might as well.

    I am told fully synthetic motor oil will last even longer. What is a fair estimate for how long I can keep this oil in my engine? Assume normal driving conditions, not extreme dust or anything.
    Google is your friend phantomcow.

    http://www.nordicgroup.us/oil.htm#Fi...nge%20Interval scroll down until you see "Synthetic Oil" in large bold letters.
    The search for inner peace continues...

  4. #4
    la vache fantôme phantomcow2's Avatar
    Join Date
    Aug 2004
    Location
    NH
    Posts
    6,266
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I've seen that. BUt that's one source, that doesn't agree with anybody else I've heard talking about this. I was hoping for some comments backed by experience.
    C://dos
    C://dos.run
    run.dos.run

  5. #5
    Senior Member DannoXYZ's Avatar
    Join Date
    Jul 2005
    Location
    Saratoga, CA
    Posts
    11,507
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I use Mobil-1 and the Porsche owner's manual recommends changing it every 7500, so I do...

    On my Supra, I had used Mobil-1 and changed every 10,000 miles. That car lasted 254,000 miles when the suspension started needing too much work and I donated it to charity.

  6. #6
    Senior Member skiahh's Avatar
    Join Date
    Aug 2003
    Location
    CO Springs, CO
    My Bikes
    08 Stumpjumper FSR Expert, 02 Litespeed Tuscany, 04 Specialized S-Works Epic
    Posts
    1,034
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    First thing: what does your owner's manual say? That's the "golden rule". Anyone who tells you every 3K miles is either trying to get you to spend money or living in the dark ages.

    Now, if you go synthetic, you can, in theory, extend your intervals quite a bit. What you will need to do, however, is take a sample and send it to a lab for analysis. You'll change your filter at the same time and add some make up oil.

    You can read some more about this here: http://www.blackstone-labs.com/
    www.teamnavycycling.org
    2010 Pivot Mach 429
    09 Felt Nine Race
    03 Litespeed Tuscany

  7. #7
    la vache fantôme phantomcow2's Avatar
    Join Date
    Aug 2004
    Location
    NH
    Posts
    6,266
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Heh, my car is up to 272k miles anyways. I just want to take all possible steps to have it last to the mighty 300k mark. If it can make it that far, I'll let it retire . Maybe I'll try 10,000 miles. But should I change the filter before then?
    C://dos
    C://dos.run
    run.dos.run

  8. #8
    Extra Medium Member redtires's Avatar
    Join Date
    Jul 2006
    Location
    Louisville, Co
    My Bikes
    Fuji Roubaix 1.0 (Sampson Kalispell Ti GONE); VooDoo Wanga (Specialized Stumpy: GONE)
    Posts
    1,613
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Part of the equation also would involve how many miles, the condition of the engine. I don't know if I would go 10,000 miles, but you can usually get longer intervals out of a good synthetic. And acutally, "standard" oil these days doesn't absolutely have to be changed every 3,000. Many people go 5,000 between changes with no issues. Personally, I only use motorcraft in my Ford for both oil and filter, and change it at around 3,000 mile intervals.

  9. #9
    la vache fantôme phantomcow2's Avatar
    Join Date
    Aug 2004
    Location
    NH
    Posts
    6,266
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Well, this car has had it's oil changed at 7500 miles and has lasted this long, so I don't believe the 3000 myth for a second. I believe that if the synthetic blend lasted 7500 miles, this should last longer still.
    C://dos
    C://dos.run
    run.dos.run

  10. #10
    Banned.
    Join Date
    Sep 2003
    Location
    Home alone
    My Bikes
    Trek 4300 X 2. Trek 1000, Trek 6000
    Posts
    6,021
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Every day. Oil = yum.

  11. #11
    Senior Member
    Join Date
    Feb 2005
    Location
    No Va but ride also in So Md
    My Bikes
    Cervelo SLC-SL, Guru Photon, Waterford, Specialized CX
    Posts
    8,816
    Mentioned
    2 Post(s)
    Tagged
    0 Thread(s)
    If you use synthetic, 7500 miles is a good time.
    You're just trying to start an argument to show how smart you are.

  12. #12
    Senior Member
    Join Date
    Jun 2007
    Posts
    263
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    The best way to check it is smell fresh oil, then smell the oil on your dipstick. Then get fresh oil on forefinger and thumb and rub together, then do so with oil off of dipstick. If the oil smells burnt, or like gas you need to change it. Like gas is a big one in high mileage cars, the rings are going to let blowby get into the oil and gas kills oil. when rubbing them you shouldn't really feel your fingerprints all that much.

    +1 for checking the manual, Auto companies spend millions on each car pushing it to its limits, the oil companies spend millions making you think you have to change it every 3k. Your manual won't be accurate for synthetic though, but I think synthetic usually gets double conventional.

    One more thing, if you get lifter tick or rod knock change back to conventional oil next time. My teachers all said that synthetic is thinner so it makes tics worse (even though that seems to go agains the viscosity rating).

  13. #13
    Pretty Hate Machine Weeks's Avatar
    Join Date
    Aug 2006
    Location
    Down in it
    My Bikes
    Bianchi Brava
    Posts
    435
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    whatever you choose, try to be as regular as possible and don't go longer. regular oil changes are probably one of the most important things to preserve the life of your car

  14. #14
    Senior Member DannoXYZ's Avatar
    Join Date
    Jul 2005
    Location
    Saratoga, CA
    Posts
    11,507
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by phantomcow2
    Heh, my car is up to 272k miles anyways. I just want to take all possible steps to have it last to the mighty 300k mark. If it can make it that far, I'll let it retire . Maybe I'll try 10,000 miles. But should I change the filter before then?
    Shouldn't be a problem with mileage. I've seen plenty of Japanese cars well into the 300-400k mile range. As for filters, they are not all created equal: Engine Oil Filter Study. I use the Mobil-1 filters which appears to have superior construction and change it every 7,500-10,000 miles along with the oil.

  15. #15
    Displaced Southerner polara426sh's Avatar
    Join Date
    Apr 2006
    Location
    Webster, NY
    My Bikes
    1967 Peugeot UO-8, 1984 Torpado Beta, 1985 Trek 300, 1989 Dave Moulton Fuso FRX, '90s Hardrock x2, '90s Norco Pinnacle, Focus MB-350 IRO SSFGGB
    Posts
    254
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I use Mobil 1 in the BMW and change the filter every 3250 and the oil and filter at 7500.

  16. #16
    park ranger
    Join Date
    Aug 2006
    Location
    mars
    My Bikes
    recumbents
    Posts
    1,794
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by AStomper
    The best way to check it is smell fresh oil, then smell the oil on your dipstick. Then get fresh oil on forefinger and thumb and rub together, then do so with oil off of dipstick. If the oil smells burnt, or like gas you need to change it. Like gas is a big one in high mileage cars, the rings are going to let blowby get into the oil and gas kills oil. when rubbing them you shouldn't really feel your fingerprints all that much.
    that's pretty good advice.
    i'd do close to 3000 miles only if it were a carbureted motor.

    i wouldn't go any longer than 7500 miles no matter what oil. and yeah changing the filter halfway through that interval is a good idea.

    amsoil is good stuff.
    Quote Originally Posted by Malibu Police Chief
    I don't like your jerk-off name. I don't like your jerk-off face. I don't like your jerk-off behavior, and I don't like you, jerk-off.

  17. #17
    avid wearer of flip-flops lucky53s's Avatar
    Join Date
    Apr 2007
    Location
    WPB, FL
    My Bikes
    '06 Felt F80
    Posts
    149
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Polara-What kind of car do you have. My Chevy had the filter near the low point. If you pulled it without draining the oil then....you just drained the oil the hard way.

    Go to your auto parts store, Discount, Checkers, Auto Zone, whatever, talk to someone there. Pick someone about 40+ because it seems that the youngsters usually aren't as knowledgable about those things. I wouldn't go with more than a blend unless you have a hig performance car. You are throwing money away. I've heard you can't just switch back and forth either though because it's not good for the engine, breaks down the seals or something.
    War: Where foolish men kill other foolish men for foolish reasons.
    Quote Originally Posted by artifice View Post
    does this face make my butt look big?

  18. #18
    Spelling Snob Hobartlemagne's Avatar
    Join Date
    Dec 2005
    Location
    Plano, Texas
    My Bikes
    Panasonic DX4000, Bianchi Pista
    Posts
    2,863
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Go by what the owners manual recommends. The 3000 mile thing comes from people selling oil and oil change services.

    Is your car losing any oil over time?
    Last edited by Hobartlemagne; 07-13-07 at 12:45 PM.

    The first rule of flats is You don't talk about flats!

  19. #19
    ZZZZZZZZZZZZZZZZ efrobert's Avatar
    Join Date
    Jan 2006
    Location
    Somewhere in Colorado.
    Posts
    254
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I use synthetic and go about 7000. My last truck, a Ford Ranger got over 300,000. I bought it new and used synthetic from the start. It still ran great when I sold it.

  20. #20
    On my TARDIScycle! KingTermite's Avatar
    Join Date
    Jun 2005
    Location
    Eastside Seattlite Termite Mound
    My Bikes
    Trek 520, Trek Navigator 300, Peugeot Versailles PE10DE
    Posts
    3,928
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by phantomcow2
    How often will I need to change my oil now?
    As often as Dick Cheney tells you to.
    Quote Originally Posted by coffeecake View Post
    - it's pretty well established that Hitler was an *******.

  21. #21
    Senior Moment Member Gee3's Avatar
    Join Date
    Oct 2005
    Location
    Daly City, CA
    My Bikes
    Specialized Allez Elite Double & a nude Bottecchia CF build
    Posts
    1,352
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I used to use and sell Amsoil and I'd change the filter out at 6 mos or 12.5k miles and top it off and then do a full oil and filter change at 12mos or 25k miles. I didn't drive 25k miles a year so I'd do it by the months instead. (I owned a modded Acura Integra with a JDM Type R engine)

    I did a oil analysis after the first year and the oil came up fine. But you'll have to google your nearest Amsoil independent dealer as they are not sold in stores.

    It saved me a ton of money and I asked a lot of my car at times. I used to use Mobil 1 full synth and change it every 3-5k miles since I drove my car hard. I did it at lower intervals for peace of mind more than anything else.
    This day will be over... one of these days!

    "I have cancer, cancer doesn't have me."
    Quote from a Kaiser commercial that reminds me of my mom.

  22. #22
    Faster but still slow slowandsteady's Avatar
    Join Date
    Jun 2006
    Location
    Jersey
    My Bikes
    Trek 830 circa 1993 and a Fuji WSD Finest 1.0 2006
    Posts
    5,979
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I have always done 6,000 miles with a filter change each time and conventional oil. By the way, synthetic oil leaks through the valve cover gaskets easier than conventional oil. If it already leaks a little bit, you might want to switch to regular oil.
    "Ride lots." -- Eddy Merckx

  23. #23
    Senior Member edp773's Avatar
    Join Date
    May 2005
    Location
    Illinios
    My Bikes
    2004 Giant Cypress, 2006 Trek 7.3 FX, 2007 Gary Fisher Wahoo
    Posts
    1,143
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    It depends upon driving conditions and contamination. If your car floods with gas or gets antifreeze into the oil, the oil needs to be changed no matter how few miles are on it. And yes, fuel injected cars do flood in the cold weather. Just not as often as the old carburated models.

    We had a synthetic oil slaesman come in once with a demstration on bearing wear. I was surprised at how well STP worked compared to the synthetic oil.
    Born Again Bicyclist! I found my Faith.

    Giant Cypress, GF Wahoo, Trek 7.3FX, Schwinn Sprint

  24. #24
    I play in the street. nobrainer440's Avatar
    Join Date
    Jul 2005
    Location
    College: K-State; Home: Overland Park, KS
    My Bikes
    2005 Allez Triple, 1971 Schwinn Varsity Fixed Gear Conversion
    Posts
    977
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I enjoy changing my own oil, and I drive my car pretty hard, so $15 or $20 every 3,000 miles (3 months-ish) is not a big deal.

  25. #25
    Displaced Southerner polara426sh's Avatar
    Join Date
    Apr 2006
    Location
    Webster, NY
    My Bikes
    1967 Peugeot UO-8, 1984 Torpado Beta, 1985 Trek 300, 1989 Dave Moulton Fuso FRX, '90s Hardrock x2, '90s Norco Pinnacle, Focus MB-350 IRO SSFGGB
    Posts
    254
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by lucky53s
    Polara-What kind of car do you have. My Chevy had the filter near the low point. If you pulled it without draining the oil then....you just drained the oil the hard way.
    1990 BMW 535i, the oil filter is near the top of the motor in a permanent housing. All I have to do is remove one bolt, remove the old element and install the new one. I only lose about four ounces of oil doing this.

Page 1 of 2 12 LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •