Quote:
Originally Posted by Regenerit
So today I had my winter tires switched back to all seasons so I should be seeing my fuel economy improve, hopefully back to 20mpg as I had last recorded in 2010. 
I manged to do some pulse and gliding down a really long stretch of road with a few stop signs. I p&g between 30 and 35mph with it taking aproximately 15 seconds to drop down to 30 each time. 15 seconds to drop 5mph is good or bad at 35mph. Any ideas?
PS. I had the rear left hub bearing replaced for $140 today. ;( It was quite loose and ready to snap at any moment which would have resulted in my wheel flying off of my car at any moment so it's a good thing it got fixed. |
15 seconds is pretty good but not really long enough to justify wear on components. Also make sure you have a charger at home and recharge the battery each day.
I was thinking with your FE as low as it is that you probably have bad bearings and the thing probably needs alignment.
For P&G its up to you but I wouldn't bother too much with it, just swiftly get to speed let off the gas and push it in just enough to maintain speed. My auto didn't really respond to real P&G as much as lifting my foot and pushing in just barely enough to keep moving.
If you insist on true P&G (e. off) you will need a wider speed differential (at least 15mph probably 20mph speed difference at speeds below 45) to see any real results, especially since your odometer wont record distance for a while during cycles. EOC to long stoplights works best in an auto. P&G Engine On is much safer in an auto but with the motor you have much less effective since you are burning at least .45gph at idle.
As others have alluded to it may be worth having the bearings all around a once over and get the thing lined up with as little toe as is reasonable.
Good Luck
Ryan