True, which is why I changed it at the first 1,000 miles. Every 5,000 miles is about 6 months for me, so twice a year is about right. BTW, I plan on changing the CVT oil at about 30,000 miles. Why? Because lifetime CVT oil is a myth. The car company wants to sell you a new car at about 60-100k.

When I was young man I used work in junk (salvage yard) about every Saint six in junk yard had big hole in rear area of block at main bearing, when they did fail from LACK of maintenance they exploded. They along with ford 240/300 and Chevy blue flame was pretty much indestructible IF owners had sense to change/check oil?

Prius hybrid battery pack is smaller so naturally smaller pack in most cases cost less. But maybe not with sharpe rise in materials to make battery packs now?

Never said I didn't change the oil...

In that era people changed the oil over a sewer drain or dumped it in the yard. But then again, my teachers smoked in the building then too.

Never said you didn’t :boxing2:

I Know! Right?

The high pitch squealing noise from drying earth bearings will be intolerable...Worse than Cicadas. The oceans will boil and we will all burn to death from heat caused by the higher friction within 12 years if we don't stop oil!

Yours, whether you like it or not,
- AOC

:)

Responding to my post the way you did most certainly implied that....

Talking from experience when in the Military we did fuel oil dilution daily, lub oil analysis weekly in the ship's lab. Oil was only changed when solids were found that were not removed sufficiently with oil strainers, filters and centrifugal purifier. When fuel oil dilution reached 10% oil was changed since it doesn't evaporate only changes viscosity of oil to a thinner grade. Transferred to a smaller patrol boat that had no space available except to check fuel oil dilution. Monthly samples were sent to company that would give anyalsys of oil condition, when we completed recommend oil change a sample of new oil was sent to set base line without that you don't know what's going in engine or additives in refining, old school straight 30w.
The worse you can do with diesel or gas engine is idling for extended periods.

Talking from experience when in the Military we did fuel oil dilution daily, lub oil analysis weekly in the ship's lab. Oil was only changed when solids were found that were not removed sufficiently with oil strainers, filters and centrifugal purifier. When fuel oil dilution reached 10% oil was changed since it doesn't evaporate only changes viscosity of oil to a thinner grade. Transferred to a smaller patrol boat that had no space available except to check fuel oil dilution. Monthly samples were sent to company that would give anyalsys of oil condition, when we completed recommend oil change a sample of new oil was sent to set base line without that you don't know what's going in engine or additives in refining, old school straight 30w.
The worse you can do with diesel or gas engine is idling for extended periods.