Is there any need to change engine car oil regularly ? and how many miles?

Question

some engeneers claimed that no need to change engine car oil and it is optional .

Answer 1

Yes you should change your cars engine oil. Not more than 10000klm or 6000miles or 6mth between oil and filter changes while its having its oil changed you should check the transmission and other drive train components along wit suspension tyres and brakes. Not only will your car run a lot better not brake down it will stop it from becoming a lethal weapon unless you are stupid enough to drive that way.

Answer 2

Those engineers have a boatload of book learning and no practical experience. The oil itself does not break down but the additives do and one of the jobs of oil is to gather the contaminants from combustion and condensation and keep it in suspension so it doesn't abrade or corrode the metals that would otherwise be rubbing against each other. It used to be that we changed oil every 2000 miles but oil is getting better all the time. OK, it isn't the oil that is getting better but the additives. We are using the same oil now as then, but with better additives. That combined with better metallurgy means that we can go further between oil changes now. 3000 to 5000 miles depending on the kind of service you are submitting your vehicle to. And change the filter. Don't be cheep on this one. Changing your oil is cheep compared to changing your engine, or buying a new car.

Answer 3

My husband is a class A mechanic and I asked him to come in and help me
answer this question. He said, " it should be changed approximately every
6000 km." {we're Canadian so don't know the miles.} The engineers are wrong.
My husband was a class A mechanic for over 46 years and retired 11 years ago.
Changing the oil regularly has not changed. It must be done. Hope this helps.
The oil gets dirty and contaminated so that is the reason for having it changed.

Answer 4

You should do what the manufacturer of the make and model suggests, some auto's use standard oils, some use synthetic blends, some use full synthetic from the factory. Some vehicles, such as Ferrari use full synthetic oils and more than one filter, usually 3 filters, and they recommend 100,000 before an oil change is needed. So look it up for your car, you can even buy the service manuals at the dealership if you don't own one.

Answer 5

Nice one everyone!
There's a twist.
The engineer is correct, if referring to synthetic oil. If you don't buy the best synthetic oil(more expensive)and go cheap - fossil oil, you will get all those bad things as the "experts" pointed out, as the oil will retain carbon and sulfur deposits and loose its lubricating properties. However, synthetic oil does not contaminate in the same manner, and I've done my oil changes (on new vehicle) at 1'700kms to change to full synthetic (Mobil one - at 3 times the cost of normal oil) again at 50'000kms 31'250miles, on 100'000kms 62'500miles and again on 150'000kms 93'750miles. I was then living in South Africa were the fuel quality isn't as good as in the Northern Americas or Europe. The oil might look dirty, though it still lubricates as it should, and I only changed the Filter and topped up halfway through each cycle.
BE CARE FULL!
Your warranty might be in jeopardy if you do not comply with recommended servicing at a dealership.
NOTE:
The manufacturer will recommend your required A-service intervals based on fuel quality in the area, contaminants in air, recommended oil type and some factors specific to your broader region.
That's what we do at our various dealership outlets.

Answer 6

Yes, you should. It keeps the engine clean, lets the pistons slide without damage, and extends the life of the car. Most manufacturers recommend every 3000 miles but I usually do it about every 4-5000 miles for my diesel truck. I do mine at Wal-Mart because they open early and are VERY reasonably priced. However, you should check your new oil filter and make sure it is screwed on tight. They tend to have a problem with that at the one I go to. Hope this helps!!

Answer 7

One major reason to change besides the dirt and carbon that is sponged in by the oil and wicked by the filter is to remove the amassing buildup of this stuff like so much removing a vacuum bag fm the cleaner.
Another reason most overlooked is that with each intake, moisture and humidity is taken in, absorbed, and has a nasty habit of creating acids that break down all those moving parts.
Dirty oil looks dirty. So take the stick, look at it, take some betwixt finger and thumb, rub. Compare to new oil. Check milage-go figure by experiment.It's Ur vehicle.

Answer 8

That engineer must be in engine overhaul business are selling cars. so you will be in to give him more$$$ I recomend chaging every 2,500 - 3,000 miles Some car manufacturers say every 5,000 miles in the manual which is probably safe but this also depemds on the abuse your engine gets , rather its all highway miles, no dirt roads, no dusty areas, etc.. then 5,000 may be ok. I personally never try to go over 3,000 i have at times but its not good habbit, I have rebuilt and built several engines and trust me clean oil and filters . is a cheap unexpensive way to maintain your car engine for a long time ahead, its nothing noiw days on some engines to run them over 200,000 miles but you must do the shceduled mainatnce checks etc.. follow your cars owners manual , they give you a warranty of so mnay miles well try going to dealership saying sir my engine is shot and by the way i never changed my oil see if your warranty is any good anymore . just spend the 20 bucks or even less change your oil and filter every 3,000 at least clean your airfilter every 3,000 change it or at least clean /inspoect every 6-10,000 miles. all this little stuff keeps your engine clean and happy, this not only prolongs your engines life but it keeps gas mileage up and that along in my household is enuff.

Answer 9

Synthetic all the way! Worth the cost because it stays cleaner longer, doesn't get crap in your engine, doesn't break down viscally (not nearly as much as regular oil) therefore doesn't need to be changed quite as often, endures higher temps and varied engine conditions. Lessens the need to rape the earth of it's crude. All around good stuff.

Answer 10

some self proclaimed engineers are retards. You should change your oil every 3000 miles or 3 months whichever comes first.
The oil breaks down due tho the heat of the engine. Making it non effective.
It's one of those things of "Pay me now, or pay me later"
An oil change at a lube place is about $30.
An oil change in your driveway (do it yourself) is about half that.
A new engine is about $2500 (depending on the type of car & engine)