I’ve wondered this for a while and this seems like a good time to ask: Do electric cars use motor oil in the same way as an internal combustion vehicle? Like do you need to get oil changes in an all electric the same way and have a need for a dipstick?
Electric cars do have oil that will ultimately need changing but it’s less exposed to contaminants than the engine oil in a internal combustion engine and therefore will last a lot longer. EVs typically have a reduction gearbox and differential and these will require oil changes in a similar fashion to a manual gearbox or differential in a ICE vehicle - i.e. barring exceptional circumstances it will last long enough to get out of warranty but don’t believe it will never need changing.
Brake fluid is hygroscopic and will accumulate water over time despite being in a nominally sealed system. Water in solution with brake fluid noticeably lowers the boiling point which leads to issues under repeated braking (e.g. down long steep hills) as the fluid boiling means you lose braking capacity in that circuit.
You should ideally be changing the brake fluid every few years (2-3 being the typical recommendation) and that applies even if the brakes are used less often.
You can use DOT 5.1 to significantly increase that wet boiling point, but it’s expensive for normal car use. I usually use it in my motorcycle, since I’ve experienced brake fade on that before, and it’s… Not fun.
Seems like 60k miles for brake fluid replacement and 80k miles for low conductivity coolant replacement. Then also replace the normal coolant at 120k miles. This is for an Ioniq5.
I feel like most electric cars don’t need to use brakes going downhill. The regen is heavy enough to maintain a reasonable speed.
I’m not sure if this is universally true but I’ve never seen a fully electric vehicle that uses motor oil. Hybrid vehicles with an internal combustion engine and an electric drive train would still need it, of course.
Not having to take my car for oil changes is bliss.
There’s still hydraulic fluids and transmission oil in EVs but by the time you need to change that most people are long out of warranty and likely already onto their next car.
So strictly speaking there is oil and fluids that need replacing but like its such a long life span.
Wait, what? At least on every car I’ve owned, the recommended interval for a transmission fluid change was about 100k mi. Are most people buying a new car after less than 100k of use? That seems ridiculous! My Corolla is almost at 250k now, I’ve had it since 2015, and I’m expecting her to hit 1m mi before I put her out to pasture.
I’ve wondered this for a while and this seems like a good time to ask: Do electric cars use motor oil in the same way as an internal combustion vehicle? Like do you need to get oil changes in an all electric the same way and have a need for a dipstick?
i have oil in the differential that needs occasional replacement
Electric cars do have oil that will ultimately need changing but it’s less exposed to contaminants than the engine oil in a internal combustion engine and therefore will last a lot longer. EVs typically have a reduction gearbox and differential and these will require oil changes in a similar fashion to a manual gearbox or differential in a ICE vehicle - i.e. barring exceptional circumstances it will last long enough to get out of warranty but don’t believe it will never need changing.
It still has oil in the transmission. And yes, you are supposed to change it occasionally because its high slip friction oil that burns over time.
Nope. The only fluid I worry about in my EV is windshield wiper fluid.
Eventually, you’ll have to top up your blinker fluid as well.
Oh, dip!
(Pun intended)
No brake calipers or power steering onboard?
Hmm do brake calipers age? You’re not really using your brakes during normal driving.
Power steering and other hydraulics would need changing eventually.
Brake fluid is hygroscopic and will accumulate water over time despite being in a nominally sealed system. Water in solution with brake fluid noticeably lowers the boiling point which leads to issues under repeated braking (e.g. down long steep hills) as the fluid boiling means you lose braking capacity in that circuit.
You should ideally be changing the brake fluid every few years (2-3 being the typical recommendation) and that applies even if the brakes are used less often.
You can use DOT 5.1 to significantly increase that wet boiling point, but it’s expensive for normal car use. I usually use it in my motorcycle, since I’ve experienced brake fade on that before, and it’s… Not fun.
Seems like 60k miles for brake fluid replacement and 80k miles for low conductivity coolant replacement. Then also replace the normal coolant at 120k miles. This is for an Ioniq5.
I feel like most electric cars don’t need to use brakes going downhill. The regen is heavy enough to maintain a reasonable speed.
True, and ICE cars don’t need to use brakes on long hills either. Use your transmission; that’s why they put those manual shift features into the car
The Regen in my Kona will stop me even on the steepest hill if I let auto do its thing. Shits wild.
And the blinker one right? EVs still have that afaik.
Got my mechanic to replace the transmission fluid in mine after 80,000km, cost $90NZD
I’m not sure if this is universally true but I’ve never seen a fully electric vehicle that uses motor oil. Hybrid vehicles with an internal combustion engine and an electric drive train would still need it, of course.
Not having to take my car for oil changes is bliss.
There’s still hydraulic fluids and transmission oil in EVs but by the time you need to change that most people are long out of warranty and likely already onto their next car.
So strictly speaking there is oil and fluids that need replacing but like its such a long life span.
Wait, what? At least on every car I’ve owned, the recommended interval for a transmission fluid change was about 100k mi. Are most people buying a new car after less than 100k of use? That seems ridiculous! My Corolla is almost at 250k now, I’ve had it since 2015, and I’m expecting her to hit 1m mi before I put her out to pasture.