3G vs 2G rolling resistance

I think it has more to do with the tires (low rolling resistance or not)and tire pressure. Owned both gens and I would say I didn't notice much difference, if anything the 2005 could coast a long time, especially if you just barely put your foot on the gas without using gas or battery eliminating the arrows on the MFD.

 

Are they both regular all season tires? And do you know what tire pressure you run? I really notice a difference in both gas mileage and rolling resistance if my tire pressure is around 30 psi.

I always keep mine at 40 to 42 psi

 

Hey neighbor! Hmm that is odd. How about gas mileage? I know that is very subjective if since they have different primary drivers and probably travel different routes, usually the 3rd generation gets a 2 or 3 MPG better.

 

Well sounds like everything is about right in that department too. That is odd though, I'll try to drive my ex Prius soon and try to see for my self again. (my ex Prius has 300,000 Miles ) My little sister drives it now

 

The newer design ought to be incrementally better, but not greatly better. If you now see a large difference, I'd go with brake drag or some other friction source that has developed with age.

 

If you have time, watch this video. It will probably clear up some of the question you (OP) have. The 2nd and 3rd generation Prius transmissions are similar but at the same time, very different.

 

I didn't notice much difference between Pearl and Pearl S.

 

i din't notice any difference when moving from my '08 to '12.

 

Can you post what specific tires on both. There's a wide gamut of rolling resistance in both companies.

Also, with both cars: try feeling the rims after a drive, see if any feel hot to the touch, to rule out brake drag. You might also try raising the rears and spinning the wheels (with parking brake released).

 

try putting them both in neutral on the same downhill at the same speed.

 

Bisco.. I first read this as "try pushing them both in neutral on the same downhills at the same speed" oh my word!

 

or put your left foot out the door and kick.

 

I guess the Fred flinstone approach is one way to test which one has the lowest rolling resistance. And a good way to get some exercise at the same time.