Gas tanks are designed to be easily filled from outside the car, so why isn't changing oil as convenient?

Sure gravity helps oil drain directly from the drip pan, but you could have a pump that sends oil to a spot that doesn't require getting under the car or reaching in the insides. The exit could be close to where you insert oil, or somewhere on the side of the car, or still have it drain from the bottom but close enough to one side that you can reach easily and drain without getting directly underneath. And why don't cars measure the amount of oil with a meter like they measure gasoline, instead of just a check oil light?Gas tanks are designed to be easily filled from outside the car, so why isn't changing oil as convenient?
The setup you suggest costs money, which would add to the cost and weight of a vehicle. Oil isn't changed nearly as often as a re-fueling. It's not that inconvenient. Many cars now also have an oil level warning light.Gas tanks are designed to be easily filled from outside the car, so why isn't changing oil as convenient?
To answer your first question, you can't use a pump/drain thing because some people are idiots at changing their oil at the proper time so a lot of times oil in cars basically becomes sludge. It has to drain straight down for the sludge people, lol. And for your second question, i think that's a good idea also, it sure would help people solve the first issue I mentioned, lol.
A meter might work when the engine has sat awhile, but it would be all over the chart with the engine running. A dipstick is simply the most fool proof and reliable way to check the oil level - and a pressure guage is the best indication of both the minimum amount of oil and at times, the engine condition.


I can't think of an inexpensive and practical way to make changing your oil as easy as refueling the vehicle (let alone the filter).
It is very simple, auto makers do not want you to service your own car! It is only getting worse. A friend of ours tried to get the oil changed in his turbo Chevrolet Cobalt at Walmart. They did not have the tools to get to oil filter!


Look under the hood and ask yourself how an I going to change that fan belt!


The access to the oil pan, filter and fan belts only proves that the automakers want you to have to come back to them for repairs. When this becomes the total case then they will also be able to dictate the cars replacement.


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