read more at: http://www.latimes.com/business/la-f...,4554184.story

 

depends my mood, I change mine at 1.5-3K now.

for most cars changing them at 3K is too much. My Sonata Hybrid ask for 3750 miles oil change tho, and I change it around 3.5K, reasonable.

but a lot of jiffy lube (or any quick lube place) not gonna be happy about this ...

 

I change my beater's oil every 8-10K miles. Never had a problem with that and I think that any sooner would be overkill.
On a hard driven car with a high revving engine I would never do that though. Instead of trying to categorize people they should spend time teaching them that any engine and car use has its requirements.

 

I change mine more than I change my underwear.

 

My Miata burns a quart every 300 miles, and has a 3.8 quart capacity.

So I change the oil about every 1,200 miles, and I don't even have to worry about what to do with used oil!

 

it really is a problem, people are just being ignorant using old world methodology in spite of the technological advances

I change my street cars 7.5k - 10k using regular dino oil, never had a problem. My Honda Ridgeline truck has 178k and has seen substantial mileage at the weight limit towing my RX-8 and enclosed trailer all over the US. It's still going strong and trouble free. I honestly expected the auto trans to have gone out by now, but it has been flawless too. I do change that every 15k due to all the WOT loading when towing. This is the recommended mileage by the manufacturer for towing.

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If your 8 burns a quart every 1,000 miles, and you go 5,000 miles between changes, what are you actually changing other than the filter?

 

My Daily driver 2011 Camry gets 10K miles oil changes. My last daily driver was a Civic that hit 200K miles. It went 5K between oil changes. Both cars just use whatever the dealer recommended and it works fine. Toyota runs all synthetics now.

On rotaries I'll go somewhere between 3K-5K depending on my mood. You need to add oil in there anyways so there is always some fresh oil. I only use synthetic there too.

 

You change oil on a beater? Doesn't that violate one of the traditions of owning a beater?

Been a while since I mentioned this, but my brother went something like 75,000 miles on a Toyota without ever changing the oil before a rod punched a hole in the block. Never had a problem before that.

I tend to agree that 3000 miles is a bit much, although that's what I do with my 8 and I really try to aim at 3k to 5k on other cars - which is now just down to my wife's Toyota. IMHO, the 7500 that a lot of manufacturers specify is not often enough if you're using dino. I think it's enough that the engine will last through the guarantee period and the original owner's time with the car.

Ken

 

For a normal street driven 8 I think it is ridiculous changing oil any sooner than Mazda recommends .

 

Lol! I have a zz3 vti powered corolla with 88000kms Oil changes and a spark plug change aside I didn't do anything else maintenance wise. Well, just a pulley replacement since its clutch broke.. after 9 years it's ok

12k\20.000kms? That's what our manual says...

 

wow - that does seem too long . Pretty sure it is 10000kms here .

 

You're still within my brother's no-change window. Although I think that had he changed oil maybe a couple of times in that 75,000 miles the engine would not have blown.

Years ago (decades, actually) I had an old Ford beater that got oil changes every 3000 to 4000 miles. The reason I did that was the oil light would come on around that time. It wasn't low...the sensor was apparently sludged up and needed fresh oil to work. It also had a pretty loud knock from a rod bearing, but that held together for year or two that I owned the car.

Ken

 

DAF XF105

SCR is a tried and tested technology “and DAF has made the best use of it, combining it with additional engine improvements in order to deliver the best in terms of fuel efficiency, durability and reliability. DAF SCR provides an improved engine performance, delivering up to 510 horse power and reduced operational costs on an impressive scale, with fuel consumption up to 4% better, and up to 150,000km between oil changes. Because combustion is more complete with SCR, engine oil stays cleaner for longer, which improves durability and operational life.

 

You're completely right. I hear some valve noises but that's it. 88000kms of stop and go traffic are pretty harsh to an engine.
However I think that we're moving from an excess to the other, a broken engine will end up costing more than 5\6 oil changes during that time span!

 

Most of Europe has gone the enforcement route already - if you read modern euro cars' manuals, the FIRST oil change is at 25,000 kilometers!

 

every 33.000 km on my LCV Mercedes-Benz Vito diesel 2.2, the onboard computer monitors the use of engine/range of RPM/time of use and warns when you are approaching service interval.

the MB have more than 100k km , always maintained by MB service and runs perfectly, that LCV at today have done only 2 oil changes.

 

I remember when you were looking for suggestions on a new dd. I recommended the Sonata cause I was looking at one as well. So you got the Sonata Hybrid? How you likin it? I got the Limited and liking it so far.

Back on topic though. I think it depends on your driving habits. I've changed my oil after 1,000 miles in some of my cars because I didn't drive it enough and 1,000 miles was a years worth of driving and I just felt it was time to have the oil changed if it was sitting all winter and not driven a lot during the year.

 

 

100k km. That's 62k miles. Not yet up to the 75k miles for my brother's Toyota lasted.

Ken

 

http://www.checkyournumber.org/ states my 8's oil should be changed at 7500 miles ... yikes ....

 

If you burn a quart every 1,000 miles, you will have completely changed your entire oil capacity before you hit the 7,500 mark. The "oldest oil" you would be draining would be ~6,500 miles old.


IF you don't change your 8's oil at all, just keep it topped off with fresh oil, the average age of your oil never goes beyond ~3,000 to ~4,000 miles. You would have ~6,000 mile old oil mixed with 1,000 mile old oil at the oldest.

The only reason I actually see for a change at all at that point is to drain anything suspended in the liquid, but changing your filter regularly should do that for you.


So if you go longer than ~6,000 miles between changes, why bother changing it at all? (other than warranty reasons, dealers wouldn't accept this logic). Just change the filter. Changing it more frequently is just attempting to reduce the average age of the oil. Every 3,000 miles is an average of ~2,000 mile old oil being drained.


Seriously. What benefit is there of changing the oil at intervals greater than 6,000 miles?

 

My last car and my wife's SUV has the oil system monitor. It tells you when to change the oil. I know in my Acura TL, I could go 7K + before the monitor would show 25% life remaining.

 

That's like saying that you can still live 'till your 50s doing cocaine on a regular basis... what if the expected outcome was something like becoming a crippled 85yrs old fart though?

 

California is not thinking of the cost to car owners. They're focused on how much used oil needs to be disposed of.

Their web site also gives the "normal" change interval, rather than the "extreme condition" interval. Most driving includes enough short trips and stop-and-go that extreme is usually applicable. Same California mentality that, at one time, required cars to be modified to retard the ignition timing from factory specs.

Ken