- Joined
- May 21, 2025
- Messages
- 10
I own a 2021 BMW i3S REX, meaning it's an electric car with a small gasoline generator that cuts on once my battery has depleted to give me an extra 80 miles of range before I have to fill back up.
These range extenders are often a cause of concern because of just how infrequently they're used, especially given that my i3 goes 150 miles on electric — far more than I need.
So my little two-cylinder engine rarely fires up, and when it does, it's just for like 5 miles or so, shutting off at lights and while coasting.
It's an interesting use case for an engine, involving lots of cold oil, short trips, and start/stops.
Are there any 0W30 oils that might be better than others for this range extender, whose oil I change every 2 years?
These range extenders are often a cause of concern because of just how infrequently they're used, especially given that my i3 goes 150 miles on electric — far more than I need.
So my little two-cylinder engine rarely fires up, and when it does, it's just for like 5 miles or so, shutting off at lights and while coasting.
It's an interesting use case for an engine, involving lots of cold oil, short trips, and start/stops.
Are there any 0W30 oils that might be better than others for this range extender, whose oil I change every 2 years?