Hello. My '06 Prius has been eating up a lot of engine oil and I was wondering of which years' Toyota Aqua/Prius C engines could work with it to replace the original engine. I heard that the Aqua/Prius C engine works better on a 2nd gen Prius and doesn't eat up nearly as much oil. I keep having to add about 4L of engine oil every 5k miles. The engine works well, MPG is fine, but there is a strange sound when going uphill. The car has 133k miles on it and the engine never needed any repairs. What do you recommend I do? Thank you in advance.
Hmm. I believe the Prius c engine comes with a variable-speed electric water pump, which the gen 2 ECM won't know anything about, and the gen 2 wiring harness won't have any wires for. So you could need to improvise something to make that work ... or just swap in a belt-drive gen 2 water pump, if the mounting is the same, which wouldn't surprise me.
Based on what @ChapmanF is saying I don't think it's possible. It seems odd that such a low mileage engine would have an oil burning problem that's this bad. Probably most lasting and fastest solution would be to swap the engine out with a low mileage used one from a vehicle at a wrecking yard. It's a very straightforward job as far as engine swaps go:
