Hi Tony: the term is "low rolling resistance" (LRR). Yes, it appears you DO have the correct tires, thank goodness. They don't say LRR, but they are. LRR is a rating based on a harder than average rubber compound, and a specific tread design.

The likely reason for your recent MPG drog is tire PRESSURE. They are set way too low. Put them back up to at least 44 lbs each, and you will see an mpg increase.

Take the car out on the highway, accelerate slowly to 58 miles per hour, then very gently reduce pressure on the gas pedal. Watch you instant mpg graph shoot up to 125 or more. You are then in "lean burn". Now, practice keeping that graph above 100. That is the key, keep in lean burn. Your mpg average can rise into the 70's if you get good at this!

2005 Insight

89.3 mpg lifetime

Video camera replaces outside mirrors