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[–] mvartan 0 points 48 points (+48|-0) ago 

Cars ABSOLUTELY need oil changes. Despite modern improvements, oil still wears out.

Shout out to the new sub /v/askamechanic and its mod @Adiabatic to explain it, I am a pleb when it comes to cars

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[–] Adiabatic 0 points 14 points (+14|-0) ago  (edited ago)

Thanks for the shoutout!

@lamphammer: with the advent of better, less viscous, less dirty oils, it is true that you are able to run them for longer. There are two components to an oil change, however; the oil and the oil filter must be changed.

The oil filter arguably has to work less with cleaner oils. Regardless, they have not benefited nearly as much in the way of technological improvement, relative to the actual oil. Quality-made oil filters will allow you to run more miles in between changes, but it is very likely that even with a quality filter you will need to have an oil change before the life of your oil has run out, due to the filter needing replacement.

I look at it this way: Frequent oil changes are a nice insurance policy. Oil filters, when clogged, have a large chance of completely destroying your engine due to lack of oil pressure. For this reason, even with quality oil and a quality filter I myself would not go more than 10k between changes.

Good question!

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[–] mvartan 0 points 2 points (+2|-0) ago 

To add to this: My buddy religiously changes his oil himself with the synthetic oils, at a pretty standard interval for synthetic oils. Despite this, something happened and his car ran out of oil in 5k miles without turning on the oil light, which seized the engine on his 00s corolla.

I have to say, getting your oil changed has an added benefit that you or a mechanic is looking inside the car. I got my oil changed and a mechanic noticed my coolant was leaking. When he went to change it, he found out a fan or pump of some sort had broken as well. If he had not noticed either of these things, my car could have overheated.

I wholeheartedly agree that it is a sort of insurance.

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[–] DYSLEXIC-MAN 0 points 0 points (+0|-0) ago 

even with quality oil and a quality filter I myself would not go more than 10k between changes.

is that in miles or kalomerters?

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[–] Merchaun 0 points 0 points (+0|-0) ago 

I have an older car and mine needs to be changed every 3k miles, I wish I could go 10k.

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[–] alwaysadicksometimes 0 points 4 points (+4|-0) ago 

Oil changes are definitely still required. It is true that will modern engines and synthetic oil that you do not need to change you oil nearly as often though. The old rule of every 5,000 miles is just way too low. Almost every car has their recommended time between oil changes listed in their drivers manual.

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[–] dave31175 0 points 4 points (+4|-0) ago 

every 5,000 miles

I must be really old. When I started driving the rule was every 3000 miles! Now I do it when the wrench icon illuminates on my dash telling me it's time for service :)

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[–] Merchaun 0 points 1 points (+1|-0) ago 

Mine 94 is still 3k, don't worry.

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[–] Steveohh72 0 points 1 points (+1|-0) ago 

The newer model Jaguars go 15,000 miles before they recommend an oil change.

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[–] SuperStar_One 0 points 0 points (+0|-0) ago 

This does not apply to turbo Subaru cars. You can wreck a motor in one of them with 4,000-5,000 miles of serious driving (and an auto-x or two) between changes. Just FYI.

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[–] alwaysadicksometimes 0 points 0 points (+0|-0) ago 

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[–] BrigadierPudding 0 points 0 points (+0|-0) ago 

I was pretty amazed to learn the recommended oil change interval for my new motorcycle is 9300 miles...

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[–] newoldwave 0 points 0 points (+0|-0) ago 

Car engines still need oil changes. Synthetic oils just last longer but not forever.

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[–] DishingShitLikeA 0 points 0 points (+0|-0) ago 

All this 10-15k (miles) interval talk is crap. You still have to change your oil at 5k if you want your car to last. And thats with synthetic. Increased service intervals only negatively impact the consumer.

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[–] rongenman 0 points 0 points (+0|-0) ago 

synthetic oil will rarely wear out however, it gets dirty...so yes, oil changes are the very life of your engine....

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[–] TyrellCorp 0 points 0 points (+0|-0) ago 

Yes. While newer engineering and materials, along with synthetics and additives anve extended the interval from (Total Loss, burns all the oil) in the '20s to 2000 miles in the 50s, and now up to 8000 miles. But the oil, more specifically the additives, still break down with heat and exposure to various elements over time.

There are some recent "non-servicable" transmissions such as found on 97 and later corvettes, that are sealed with factory fluid, but they are hotly debated in hotrod circles, and do not see combustion byproducts therby extending use cycle.

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[–] M80TheMan 0 points 0 points (+0|-0) ago 

Oil is the blood of the engine. Bad oil = dead car.

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[–] menstreusel 0 points 0 points (+0|-0) ago 

My next car won't need oil :D

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