How often you should change oil for Hybrid engine?

[HeyBales]

I think your missing my point. Regardless if it starts at 15 or 25 mph that's quite a difference from starting a car at idle. I don't really pay that close attention when the engine springs to life but I know it's not when I start it first thing in the a.m. and it starts at a higher rpm than I would typically cold start a vehicle. Just saying if there's no mechanism to circulate the oil in that condition it would cause more wear on the engine.

When it is spun up it ends up at idle RPM about 1500 for couple seconds before fired up to provide torque, also starting around 1500. After your next morning start you can hear that idle by manually starting engine with a pedal press.

As it's been known for years doesn't take many seconds to get full coverage for oil, it's the taking it easy until warmup that matters more - why the advice to idle until warm is no longer given - get going calmly to warm up faster.

Same advice applies.

And actually there would be a big difference between being brought on @ 10% load and almost full load.
Hence my fact sharing.

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[Timothyd]

It's how mine works, daily driver and engine doesn't start until under full load 20+ mph not sure of the rpm as we don't have a gauge. But... it's well above the sub 1k rpm of a typical cold start.

Depends on the battery charge, load, and temperature. So, there's not one metric to go by.

 

[The Real Maverick]

When it is spun up it ends up at idle RPM about 1500 for couple seconds before fired up to provide torque, also starting around 1500. After your next morning start you can hear that idle by manually starting engine with a pedal press.

As it's been known for years doesn't take many seconds to get full coverage for oil, it's the taking it easy until warmup that matters more - why the advice to idle until warm is no longer given - get going calmly to warm up faster.

Same advice applies.

And actually there would be a big difference between being brought on @ 10% load and almost full load.
Hence my fact sharing.

I like "fact sharing". I do the same.

The gasoline engine is started under no load. It is being spun by a very large motor. The electric motor is doing ALL the work in that instant.

Once it is spinning at idle speed, then fuel and spark are added. The engine remains under very light load, the electric motor provides the majority of the propulsion as long as battery charge is sufficient until the engine and catalytic converter warm up.

It is under the lowest load practical the first two minutes. More gentle of a startup than a traditional car IMHO.

Now; if you mash the pedal to the floor, this gentle warmup cycle is overridden and it will give you what you want... just incase you need to outrun an exploding volcano or something.

 

[Phimosis]

I had a C-Max hybrid, same engine and I ran only fully synthetic oil and did my changes anywhere from 7500 to 10000. I just traded it in at 87000 miles and the engine was running as good as new.

I have a coworker that I have worked on and off with for the last 10 years. I hadn’t seen him in about 4 years. The last time I saw him, I was driving a Prius and he was driving a C-max, so we used to compare notes on our hybrids. We both have hybrids because our work commute is 580 miles a week for me and 680 miles a week for him. So I saw him just yesterday and asked him if he still had the C-max. He said no, he traded it in, inherited his wife’s civic and bought a new suv for her. So then of course I follow up with, how many miles did it have on the odometer? 285,000! And I know from previous conversations that he only changes the oil when the service light turns on. I didn’t ask how many miles that was, but guessing 10k?

 

[Phimosis]

Seems like there’s a lot of hobbyist petrochemical engineers in this thread, that understand the science of how oil shear pressure and temperature effect viscosity and oil film thickness in relation to oil age, better than the professional petrochemical engineers do.

 

[MakinDoForNow]

I think your missing my point. Regardless if it starts at 15 or 25 mph that's quite a difference from starting a car at idle. I don't really pay that close attention when the engine springs to life but I know it's not when I start it first thing in the a.m. and it starts at a higher rpm than I would typically cold start a vehicle. Just saying if there's no mechanism to circulate the oil in that condition it would cause more wear on the engine.

It has a planetary in the gear set the computer varies the load between the elec motor and the combustion engine. The ice has been prewarmed if necessary. If you have exceeded 10% on power gage the ice is running and generating electricity. If all generated cannot be sent to battery then some will go directly to the electric drive motor. At some point the planetary will share load between. Over somewhere Around 67 mph the ice will be pulling the whole load. It's a balancing act. The computer will let the ice or electric work together for best mpg. To best monitor ice or electric select "Instantaneous mpg" in settings. You can see mpg vary from 0-999.9. (999.9 will be less than a second just before it switches to electric).

 

[Gunnar88]

I just did my 3rd oil change and here is the analysis from Blackstone on the 2nd oil change, I did not analyze the first oil change but I did do the factory fill oil at just over 6000 miles which was 50% oil life and this last analysis was at 19% oil life. If the motor is not running for all the miles then it would seem to be bette rot go by the oil life monitor.. Either way the lab recommended going to 11,000 which would be about zero percent oil life or right about when Ford says to change the oil. Was worried about the long block bad crank shaft thing so I cut open my oil filter as well and I could see no foreign material. If you really want to get int he weeds on oil go to Bob Is The Oil Guy forum, those guys go deeeeep!

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