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You can change just the filter, you need to put a oil drain pan under the filter to catch what flows out and be as fast as possible, remove the incorrect one and fit the new one, you will need to top up the oil a little but won't need to do a complete change.
You will need to look from under the car, it will be located on the passengerside on the firewall, you will see a small rubber boot sticking out and thats where you unplug it, another option is at your next oil change ask them to blow air into it. we unclog customers drains all the time free of charge. it takes less than 1 min, the time is putting the car on the lift and still its less than 5 min, but you can do this yourself too. look from under the bottom ,good day.
If the swooshing sound is up in the dash area..and you have not lost any coolant.. chances are you have a plugged AC/Defroster system drain hose.
On a hot humid summer day when folks are running the AC you may have noticed puddles of water under your car and others. This is the excess moisture being pulled out of the passenger compartment. It collects and drips out of the drain under the car.
You probably don't have that puddle forming anymore.. the drain is clogged. Next time you have it in for an oil change at a decent shop.. have them locate that hose..give it a blast of air.. to unclog it.. and drain that water..
If the sound is coming from somewhere else.. best to locate it and drain it.. or clean the drain holes..doors etc..
I usually unclog them using a puff of compressed air. The crud that plugs them is pretty soft and generally is quite easy to blow out. It may plug up again a time or two until the crud works itself out but usually once the drain is finally clear it will stay open for quite a while.
There are three type's of smoke, 1 white smoke water blown head gasket. 2 black to much fuel not enough air running rich. 3 blue burning oil, check your spark plugs if fowl with oil, need to do a wet and try cylinder compression test if that check's out good, more then likely you have bad valve seal's or oil drain hole's under valve cover are clogged, remove valve cover and with long screw driver unclogged drain hole's. Hope this was very helpful, good luk
The oil is probably old and just sludged up and/or baked a little. Pull the oil drain plug. If it doesn't drain, stick a screwdriver in the drain hole to pierce the clog, it'll start draining after that.
Make sure to change you oil as often as manufacturer recommends.
If the vehicle has been sitting for awhile and/or it's been a long time since the last oil change, then this will happen in some vehicles.
As far a loosening deposits, there are arguements that synthetic oils help clean the engine. My personal recommendation would be to increase the frequency of your oil changes. That'll work best and help your car in the long run.
I think for the initial oil change, you should use very cheap oil, and drain it after 500 miles or so and see how it looks. Then put the good stuff in.
You can also send your oil off for analysis if you really wanna get down to it. Depending on where you live, there may be a lab near you. It'll break down how your oil looks as far as contaminiation, mineral deposits, etc.