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Driving Green Means Not Changing Your Oil Until You Need To

 
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When was the last time state tax dollars went toward telling you not to do something?

Ads against drunk driving, certainly. Perhaps ads against smoking cigarettes.

But now, California is embarking on a campaign to persuade its citizens not to change their oil so much.


More modern motor oils, better control of the combustion process through vastly more powerful electronic circuitry, and the persistence of generations-old auto advice have combined to lengthen oil-change intervals.

Yet many of us change our oil more often than we need to.

In California, in fact, roughly half of all drivers change their oil every 3,000 miles--or even more often!--despite manufacturers' recommended intervals for new cars that may be a multiple of that number.

And that, says California's Department of Resources, Recycling and Recovery, wastes oil that could potentially have a far longer life.

According to a story in the Los Angeles Times (also covered by our sister site FamilyCarGuide), the department has launched an ad campaign to encourage owners to be aware of the recommended oil-change interval for their car.

The tagline "Check Your Number," is also the domain name for a website that links owners to a website that gives the the carmaker's recommended interval--these days, often 7,500 to 15,000 miles--for their specific vehicle.

That links to some general advice about what the number means, along descriptions of unusual driving patterns that might require more frequent oil changes. Other more standard advice: Keep your tires properly inflated and switch off the engine if the car is stopped for more than a few seconds.

California

California

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If every driver moved to the recommended oil-change interval, says a department spokesman, 10 million gallons of engine oil could be saved each year. 

The change might as much as halve the amount of money drivers spend on oil changes, which cost $25 and up at quick-change facilities and potentially more at dealerships.

While green concerns aren't necessarily top of mind for many car owners, even in California, the economic argument will likely resonate with lots of people feeling the pinch of the three-year-old recession.

In other words, it's a win-win situation: Driving green means only replacing your engine oil when you really need to, and that saves you money.

Even the shrillest talk-radio hosts may find it hard to fight that one--though we have a sneaking suspicion they'll try anyway. 

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Comments (14)
  1. I have to put on my conspiracy hat here. I call this "The Great American Oil Change Scam". Why? A few things, but the most sinister is that it is near impossible to find the recommended oil change interval on manufacturers web sites. In the UK, it became fashionable to sell cars with low maintenance 10k oil change or 15k even in the 90's. Over in the US, the very same cars are 'recommended' to change at 3k - pictures of 'old oil' in the dealership to frighten you. Don't tell me this is down to the US weather or environment; I have friends in Finland that change oil at 25K! No, this is about isolating the US & fooling them into spending money at the dealership. It's an irresponsible waste.
     
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  2. The oil change intervals are listed in one's owner's manual. At least they have been for every car I've owned.

    After we bought our 2010 Prius, Toyota sent us a letter saying that they'd decided to extend the change intervals to 10k from 5k and that's what we stick with.

    Jiffy Lube used to recommend it every 3,000 miles which is an irritation to say the least. But asking them if you need to change your oil often is like asking a barber if you need a haircut!
     
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  3. But the key is, can you get that information from the website to compare US and UK cars?
     
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  4. I don't think the average driver has any idea when to change the oil other than the manufacturer recommendation. At least, I have no idea.
    Related anecdote: I drive an RX8 and the oil gets consumed so I need to keep adding more rather than changing the oil.
     
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  5. Jiffy Lube must be having a fit
     
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  6. With my Volt, I just need an oil change every 24 months since most all of the driving is done with the engine off....

    MrEnergyCzar
     
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  7. Overall good & I agree (do mine every 5K or so), but this will inevitably mean more jobs lost as dealers & the multitude of 10minute oil change locations have less business. Everything has an effect somewhere.
     
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  8. Hey Michael, I agree, but it goes WAY deeper than published service intervals. Contrary to popular belief (and what the oil companies tell you), oil does not wear out, it just gets contaminated. The problem is filtration. Standard full flow spin-on filters only clean down to ~25 microns. If the spin-on filter was dense enough to actually keep your oil clean (down to 3 microns or less) it would shut your oil pressure off and starve your engine. I have a Kleenoil bypass filter that keeps my oil clean down to 3 microns. I have never changed oil in the gasoline engine and trans of my truck in 324,000 miles and it STILL has the original engine and trans. So, why don't the OEMs use bypass filtration technology? Answer: It gets in their pocket!!!!
     
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  9. Greg that is myth, oil does get damaged and it happens in several different ways. Some engines are prone to developing crankcase acids. The moment the oils additives lose the ability to control them, the oil fails and starts to gel very quickly. GM and Ford both require a thinner oil at low temperatures in order for an oil to meet their proprietary specifications than what SAE requires. They can both demonstrate that at low temperatures an oil that is too thick, even though it may still classify as a 5W can have the molecules litterally torn apart by shearing forces inside th close tolerances of the bearings.
     
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  10. John, oil filtered at the 25 micron level will definately "use up" the additive package. If filtered to below 3 microns they have nothing to adhere to, thereby extending their life. Adding make-up oil replenishes the additives as well. I fail to mention that the Kleenoil filter also removes water which eliminates the formation of acids in the crankcase. Also, the only time the molecular structure of oil is changed is if it gets hot enough to burn.......and at that point you're done anyway. Oils are formulated to withstand much greater temperatures than the normal operating temperature of an engine. If you would like a sample of the oil from my truck, just let me know. It's as clean as new oil and with the additives intact.
     
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  11. Quote"Also, the only time the molecular structure of oil is changed is if it gets hot enough to burn."

    That is something that with the GDI engines is far more likely to occur than in the past. It's critical that the oil be thin enough to flow off the pistons rapidly in order to cool them without overheating the oil.

    The SAE standard for filter tests SAE J1858/ISO 4548-12 uses a 20 micron standard plus there is a capacity requirement that goes along with it. If the filter traps too small, then it could plug up prematurely. Not small enough and you have longer life but associated risk from particle wear.

    There is no need for a filter to "remove water" for most drivers. Normal operation at full temperature does that.
     
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  13. Quote "If the filter (standard full flow filter) traps too small, then it could plug up prematurely. Not small enough and you have longer life (of the standard full flow filter) but associated risk from particle wear."

    BYPASS FILTRATION SOLVES THAT DILEMMA! As I stated earlier, that's why full flow filters do not work. Full flow filters cannot get dense enough to clean the oil to the 3 micron level (which is the tolerance between the lubricated moving parts in an engine), not because they will plug up prematurely, (the contaminates that cause you to have to change your oil are WAY smaller than the 20 to 30 micron efficiency of full flow filters) but because it will restrict the oil flow/pressure. IT AIN'T ROCKET SCIENCE!! LOL
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  14. FACT # 1 25,000-Mile Extended Oil Change Drain Interval Synthetic Motor Oil has been on the U.S. market since 1972. FACT # 2 100,000-Mile Plus Extended Oil Change Drain Interval Technology has been on the U.S. market since 1980. ALSO Lawsuit Hits at Jiffy Lube Oil Change Intervals Read it in the Lube'n'Greases Lube Report @ http://www.imakenews.com/lng/e_article002438181.cfm?x=b11,0,w
     
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