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Is It Okay To Just Change Engine Oil But Not The Oil Filter

Change engine oil filter?

When you checked it at the garage the engine would have been run so the oil would have been pumped up to the cylinder head and camshaft(s). When you left it sitting the oil will have run back down from the cylinder head through the oil passage ways and into the sump. The sump is the where the oil is stored and sucked up by the pump. So once you run the engine for a few seconds the oil passageways and cylinder head will fill with oil again lessening the amount in the sump. This is why you should never rev your engine the minute you start your car (or motorbike) as the oil needs a chance to flow back up to the cylinder head and provide full protection. Remember if its just over the maximum then its too much, a lot of people over fill the engine with oil thinking its better to have it just over maximum as its good to have plenty of oil, but the maximum is the very top limit.

Is it safe to change oil but not the filter??

your engine generates a lot of crap which the oil picks up, which is why it gets black over time...
Leon the Motorman is an idiot. If oil filters were useless, cars wouldn't have them.
Change the filter, if it doesn't come off, that's a problem that you should fix. you can get a specific tool that is used to loosen oil filters, i suggest you look into it. a plugged oil filter can start to give you grief. Also, it's not wise to do your change strickly on a "miles" basis. I could idol a car all day, drive 0 miles and still use up 10% of oil lifespan in the engine.. if you do a lot of city driving you should be changing it every 3 - 5 months, regardless of distance. (the only time I would say your ok with once a year is if your 2000 miles a year is under a normal driving situation and the car actually just sits in the garage for a majority of the time) but even then... common, twice a year wont hurt you.

Is it ok to not change my oil filter when i change my oil?

Sounds good and what you can do is when you do find that tool and have the new filter in hand - change it. What I've done at times is too then say drain all that new $$ oil out within the next 500 miles or so. If you don't think the oil was really sludgy or worse. The filter has dealt with most things just like my coffee filters. The thing is now you would be on second run and if the filter went to like 10,000 miles for imaginative purposes then your not your not getting much oil through. So if you want to just the filter do so when engine not hot and drain the $$ other oil outa there later and I use it in the car that dosn't have many miles left to it anyway, it works too me...

I just want to add one thing to the spectrum of answers you received so far: don't forget that if you change your filter and like most people don't prefill the filter with oil before putting it on (considering how many engines now have the filter sideways, or even upside down), then there are a few seconds when the engine is getting no oil as the filter is filling. That being the case, it might be better to NOT have all the old oil drain from the top of the engine, whether you changed the oil after the car’s been sitting long enough to drain into the pan before you start, or you let it drain long enough to get every last drop while you're changing it.So I try to do it when the engine has run a bit, but not so hot as to be too hot to work on, and then open the drain, change the filter, and close the drain, as fast as i can (at a normal pace, not like a NASCAR pit stop), without waiting for the last of the oil to leave.Because really, if your old oil is so gunked up that those few ml left in are causing significant contamination of the new oil; or that your camshaft is better off running dry for a few seconds than running in that old oil; then you probably need to change your oil a bit more often.Note that as far as I can tell, all the answers here, including mine, are based on common sense good practice theory, rather than actual experiment. You'd think some oil company would run a longterm test over the life times of a few engines and let us know.Finally, let me put a plug in (get it? ) for the Fumoto oil drain valve (if they're still being made, I don't know); a very nicely engineered brass ball valve which replaces the drain plug, so a quarter turn of the lever opens or closes the drain, fast, simple, and less messy. And the lever locks so it can't open when you don't want it to, etc. I repeat, it's well engineered and well constructed. Just the reduction in stripped or crossthreaded plugs is worth it. You may end up changing your oil more frequently because you're not on your back with oil running down your arm. (I have no financial or other interest in the device or company other than a wish to see a good item and a market that could use it find each other).

What will happen if i change the Oil and not the Filter?

My car has 2 Drain plugs. one Oil only, and one for the Filter. I only have abig enough socke tfor the one WITHOUT the Filter. MY CAR DOES NOT BURN OIL, but i DID PUT 1/2 QT TRANSMISSION FLUID and SEAFOMA in there.. so i WILL change it today. (SeaFoam i drained out 2 wuarts and added, through "Oil Only" Plug.)

1991 Oldsmobile Calais 179,000 Miles
THIS IS THE ONE I GOT EXCELLENT ANSWERS THAT MY CAR has -CONDENSATION- not ISSUES, but to change the WATER PUMP too!

If i change the OIL and not the FILTER... on a scale of 1 to 10, 1 being the WORST and 10 being the BEST, what result can i expect?

Someone told me that the new oil MAY carry crap OUT f the filter.. but mine is IN THE PAN on the 2.5L IRON DUKE, so i wonder...

Unless someone knows what size SOCKET the Oil Filter plug is, it looks big Bigger than 15mm, thats a fact.. What socket is that? Otherwise, im gonna do just the Oil, ive put the "Mix" in for 6000 miles (making sure new Oil of same kind, Valvoline MaxLife 10W-30 Synthetic Blend, along with the 1/2qt Transmission Fluid, which is what i want to rid out.. like i said, i let out "2 Quarts" and refilled with NEW when i put in the 1/3 can SeaFoam after 30 miles. Transmisison fluid i let remain in.. for 600 miles or so now. So, is my engine VERY Clean?)

Robert M, BobIsTheOilGuy.com says MaxLife SYNTHETIC BLEND and FULL SYNTHETIC (Ill use the Full) MAXLIFE oil is a VERY GOOD one! You must be referring to the "White Bottle" Valvoline for the "Wax-Made Oil that Smells Bad?"

And SHOULD I USE 5W-30 OR 10W-30? Cap says 5W-30.. any BENEFIT to 10W-30, or wil Full Synthetic should i JUST USE 5W-30 will it KEEP THE ENGINE CLEAN TOO?

Thanks, i didnt go get the 5 gallon Jug yet...

Is it safe to Change oil on car and not change the oil filter?

Hi, as long as the auto continues a good oil level, that you may go farther than the scheduled time and it will not hurt your engine, this is the reason the shop didnt say whatever. In your cousins case maybe she was low on oil all the time. So in your case its one of a kind so dont worry... Get to grasp your vehicle... Check oil degree earlier than the oil exchange and so that it will let you know how a long way you can power the car above the encouraged mileage. I know two individuals that under no circumstances converted the oil , they simply add to proper stage.. And their cars are still on the go. Some automobiles drop oil stage way under the dip stick at 3000miles and its just superb to agenda an oil and filter alternate. An engine would no longer tell between new and historic oil, but it may well tell if it is low on oil and it's going to not adore it.. :)

Do I need to drain all of my oil to change the oil filter on my car?

IM just gogin to explain to you that oil contained chemical additives that give it its unique visquous properties, these additives do the opposite of what liquids usually do, and become thicker at high temps and thinner at low temps, these additives make sure your oil is the correct viscosity for both starting engine temps and running engine temps. Over time, and use, the additives break down, and the oil no longer functions properly, the service life of these additives is not very long at all, and when it doesnt function, your oil does not lubricate properly. IN addition there are additives to absorb sulfur from the fuel, if it is not absorbed it will cause the presence of surlfuric acid in eqilibrium in your engine oil, suluric acid will eat though concrete, and will without question damage seals and other parts of your engine. The additives that abosrb sulfer are also consumed over time.

Now that you know why you need to replace your oil, you can remove your filter, allowing only 1/4- 1/2 of your engine oil to drain during replacing it, but its only another 6 bucks to replace all of the oil, so just fork it over and replace it, because not changing your oil will hurt your engine a lot.

It can. It depends on how long you go in between oil changes, and what the state of your engine is.The oil filter is there to catch dirt and debris, such as metal particles, from entering areas with moving parts. Oil goes in one part of the filter, the material inside the filter catches any particles, and comes out another section.If you went 3,000 miles in between oil changes with a newer vehicle, and didn’t change the filter, it may not do anything. The internal moving parts of a newer vehicle haven’t been subjected to as many opportunities for negligence. Most newer vehicles call for a change every 5,000 miles and call for full synthetic.If you have an older vehicle, the internal parts have been moving for some time. Metal wears down, filters have many opportunities for clogging, and debris is more likely to get into the system. The oil filter is likely catching more particles.If you leave an old oil filter on and simply change the oil, you risk further clogging the filter. A clogged oil filter can cause you to lose oil pressure, so your moving parts don’t have the supply of lubricant it needs to stay cool. Hot engine parts lead to parts that will no longer move. Then you get to purchase a new engine, or new car.An oil filter costs, usually, less than $15. Save yourself the trouble. If you’re going to change your oil, do the whole job, and do it right.

Is it ok to change oil without changing the oil filter?

You CAN change the oil without replacing the filter, but think about this- the oil filter cleans out particulates in your dirty oil. Not replacing the filter when you do an oil change reintroduces both a little dirty oil back into your new oil, and since the filter has already been doing it's job, then the filter will not be as effective at removing new particulates as a new filter. The reason you change your oil is to remove particualtes and impurities to help prolong your engine life. For the slight extra expense and time it takes to change the filter as well, it is well worth it to do so.

OOOooo…. I would get that sucker changed as soon as possible. You can get by without changing it of course, but your engine will be trying to burn sludge built up over time that’s sitting in the sump. If you want longevity in car engine, change the oil and the filter every 10,000 miles or less. It may not be lose enough for you to loosen because it hasn’t been changed for a while. Oil filters are cheap and will take a half decent mechanic no time to change. What’s more expensive is swapping the oil out again. You just put nice clean oil into that dirty engine. I’d swap that again too. I used to work for Mobil: here’s what they have to say on the matter.High mileage motor oil | Mobil™ Motor OilsAnd this is what the inside of your engine will look like if you neglect the changes too long.Yes, it’s boring to go without your car for half a day while you get the oil filter and oil changed, yes it’s dull to have to pay (it costs me about €80 for filter and oil change with my local chap). But how much is a replacement engine after yours has seized? And while you’re there check the belts/chains. Same story… if they go the engine often goes (depends on the model, but most of them do).Good luck