got about 40K miles on 2005 Prius. it's been running beautifully for the past 2 plus years. and always get close to 47-52 mpg. i drive with the "pulse and glide" methods that often gets better than 50 mpg. lately, i notices it does not glide.... anymore. my car actually slows down on a downhill pretty rapidly. it at least held same speed on the same downhill glide before... i have 2 brand new tires in the front and the back tires are good too. what could be the problem? need engine flush? better oil change? ( i just use very generic shops like jiffy lube, purfect auto.. what can i check?
I have a 2008 model and i notice that if i go over 40 MPH it does not glide. However, if i go below 40MPH it does glide.
The new tires are my first thought for placing blame...new tires take a couple thousand miles to break in. Also, I notice a reduction in glide distance when a tire gets low on pressure. If you used to run 42/40psi when you had the new tires put on they may have dropped you back to 35/33 and that would cause a very noticable increase in rolling resistance.
"stop using B" hahahah, yes it actually does feel like I am using B. speaking of OIL changes, is there a good place (national chain) besides the toyota dealer (who charges alot) like Goodyear, meinke, or something..
I have a 2005(bought new),k with 61K, it is running better than ever.. a couple of things I have observed.. 1. when tires are rebalanced or new Costco will not set the higher PSI and that makes a significant difference in the 'feel' 2. moisture on the road is a drag element. 3. my last oil change a toyoda was 5-20 and the car seemed to be floating on air. 4. the front grill is blocked and air intake is monitored with a scan guage. this helps a little. 5. finally, re-check what your new tires resistance is... my winter micheins are better than my rest of the year , hyroedges.. good luck! i love this car!:wof:
