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As more vehicles come with synthetic motor oils from the factory, oil change interval recommendations have begun to increase. It looks like 7,500 miles is the new adapted standard. The synthetic oils experience less thermal breakdown and evaporative loss over time compared with conventional oil, which allows for less frequent oil services. Some vehicles have even forgone the traditional dipstick in favor of sensors that determine oil level and adjust the service interval in real time based on your driving habits. However, the decrease in oil changes also means a decrease in service business for dealerships. Dealers rightfully fear a reduction in customer retention and are unsure of the long run effect. Many have found solutions in prepaid maintenance contracts and complete service package deals such as combining tire rotation with your oil service. Also, despite their fears, dealerships won't completely lose out on regular customers as there will always be those reluctant to change their 5,000-mile oil change habit. Plus, there are many people who know the abuse they put their engine through, or don't trust electronic sensors and like to ride on the safe side with frequent oil changes.

[Source: Automotive News]


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  • 50 Comments
      • 7 Years Ago
      i change my oil once a year with filter changes every 4K miles. my silverado has 150,000 miles and the engine is as quiet as my 08 C-6.
      ronin
      • 7 Years Ago
      Sorry, what is "dino?" Does that mean petroleum-based, rather than synthetic oil? Why "Dino?"
      • 7 Years Ago
      7500 "new" standard - what kind of stuff do you guys put into your engines?. I have a '92 car with a specified 9000 mile interval and a '88 that calls for new oil every 12500 miles. Both still running strong.
      • 7 Years Ago
      synthetic can break down just as fast depending on the weight. The digger difference between the 2 viscocity numbers, the quicker its gonna break down...especially if your at all aggressive.

      I change my oil every 3000 miles, and use only Mobil 1 15w50. Oil is not something you wanna gamble with.
        • 7 Years Ago
        *Bigger*

        ESPECIALLY for any forced induction vehicle (turbocharger, supercharger).
      • 7 Years Ago
      1989 Jetta: 235,000 miles on engine and change oil aprx. 3 to 4K miles. Still runs strong. Uses a bit between changes but I need valve seals.

      1985 Saab 900: 250,000 miles on engine and change oil aprx. 3 to 4K miles. Still runs strong. Does not use any oil to speak about and engine has never been opened. Original timing chain which runs in engine oil.

      1998 Mercedes C230 2.3 litre 16 valve: Uses Mobile 1 and has fancey smancy sensors. Computer reports oil change needed at aprx 10k miles. 70k miles (just broken in) and really really strong and uses no synthetic.
      • 7 Years Ago
      I was just looking through the factory service manual on my '92 roadmaster the other day to find it recommended 7500 mile oil changes (not sure what the users manual recommends). I felt a lot better about letting it go 4000+ last time, although 1600 of that was towing a 5000 lb trailer at 70mph so it probably wasn't a bad idea to be a little conservative anyway....
      • 7 Years Ago
      7500 miles for me would be nearly a year between oil changes. Since 90% of my driving is stop-and-go, I change it every 3-4K.
      • 7 Years Ago
      Didn't the outgoing Honda Accord V6 say 10,000 miles, and that is with only five quarts of 5w-20.

      Ideally you'd never change the oil if: the engine oil system primed itself before startup, there was better oil filtration (ala a bypass oil filter), better air filtration, and better PCV system [don't burn the oil, take it out of the airstream], and good oil temperature regulation, and very high quality cylinder wall/piston ring interface.
      • 7 Years Ago
      What do you mean 5k old oil habit? I know plenty of people that are still convinced 3k is necessary.

      I stick with 5k (even though I have synthetic) just because of all the stop/go traffic and short drives I take in LA. If I lived in the suburbs, I probably would up it to 7.5k, or maybe even 10k.
        • 6 Years Ago
        I have been using Amsoil since 1974. I change oil and filter once a year and have between 18,000 and 22,000 miles on my vehicles at year end. I trade at 100,000 miles usually. I have never had an engine issue or oil consumption problems. I had an increase in mpg on all but one vehicle. Ditch to old stuff and don't believe those who insist you need to change at 3,000 miles. They haven't kept up with the times.
        • 7 Years Ago
        This sounds nasty. I feel for you americans. My Skoda Octavia TDi (2001) calls for service every 30-50.000 kilometers (18.441 to 31.068 miles) depending on how nice I drive.

        Since I commute about 62 miles a day, most miles are slow and steady, and normally the service indicator goes off at about 30.000 miles. Since the Skoda shares engines with VW Passat, Jetta and Golf, this should be the same over there. -Or what
        • 7 Years Ago
        my god, my mom told me some person on the radio recommended changing oil every 1500 miles. Wasn't a commercial either.

        People are ridiculous.
      • 7 Years Ago
      "It looks like 7,500 miles is the new adapted standard"

      Adopted standard, not adapted standard.

      • 7 Years Ago
      I change my oil + filter every 3k-3.5k tops. Seeing the oil that comes out, and hearing how the car runs after a change is all I really need as far as proof that 3k is about right.

      Besides, Honda oil filters are cheap.
      • 7 Years Ago
      Most euro cars have 12k oil change and have for quite some time now, my 98 Alfa 156 for example also most Jap cars sold in europe. Its not in the manufactures interest to give over long intervals and have engine failures etc. so I think they probably know best. Obviously changing more often will not harm an engine as long as a good quality oil is used, no wall-mart.
      Its funny that some of the cars that have 12k in europe have 3 or 5k in the USA, does the US have lower grade oil?
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