Technology

The article is really lazy about citing its sources.

many cars don't come with dipsticks anymore. Some sources say

Are these some sources in the room with us?

it's because automakers don't trust us to use them, so why make them? (That's kind of along the lines of rather have it and not need it than need it and not have it, right?) Or maybe it's some kind of conspiracy to keep drivers coming in for oil changes more often.

This is like an eighth grader padding out a book report.

But in actuality, it's because a lot of things are going digital.

Tl;dr: Here's a higher quality source: Why the Reliable Dipstick is Sliding into Obsolescence

Knowing the exact oil level is very important for new cars. The piston rings are now made of softer metal to get a few more mpgs. If you overfill oil, you will get blow by, damage the rings, and start burning oil. Toyota now has an involved process of changing oil, running the engine, then topping off the oil while the engine is hot so as to not overfill. But not even my dealer follows that official procedure Toyota put in their manual.

Because I run electric?

I don't like it because:

• I want to look at the oil and smell it, not just check the level.
• I don't know the failure modes for the sensor, so I can't trust that the absence of a complaint from it means the oil level is correct.

my 2008 BMW doesn't have a dipstick

This sounds like an old Mercedes problem: Why even having a dipstick when there isn't any drain bolt? The Mechanic sucks all the oil from the top using a vacuum. Grime buildup down in the oil pan? Ain't care! The car will break anyway, once it's out of warranty.

New cars absolutely do have dipsticks; they're the ones designing them.

Notwithstanding the potential for software bugs or other issues inherent with monitoring oil levels only digitally, monitoring just the oil level is not the sole purpose of the dipstick. Being able to physically see a sample of the engine oil is a vital diagnostic tool and can alert an owner or mechanic to a head gasket problem or other oil contamination issue, or if something is grinding metal shavings into the oil, etc.

For what it's worth I have yet to actually physically see a new vehicle without an oil dipstick. I guess they're out there, but so far I've been lucky. But I have already had quite a few automatic transmission equipped cars without a transmission dipstick cross my path, and that's already enough of a pain in the ass. If you're lucky there's a side plug in the transmission case you can use to check the fluid condition and level (after crawling under the vehicle...) but in a lot of cases there isn't even that -- your only recourse is to drop the transmission pan off entirely, which causes you to lose all the fluid in the process. And you'll probably also have to replace the gasket while you're at it. Needless to say, this is an incredibly moronic design decision.