>Usually I get 24 miles to the gallon for stop-and-go city
>driving with the '06 Camry LE, but this last tankful I got
>28 city. I really babied the accelerator pedal this time
>and, of course, have plenty of air in the tires. I had
>Shell V-Power premium in the tank this time (for its
>exceptional detergent levels), but usually I just put in
>a regular grade.
>
>I had Hy-Vee Grocery Store premium in there two tankfuls
>back, and thought the car was idling kinda rough sometimes
>while stopped, so I thought some Shell V-Power was in
>order to help clean out any minute amounts of potential
>gunk I might have gotten from the Hy-Vee gas.
>
>When I asked him, the Hy-Vee manager said his gas met
>the Top Tier standard, but Hy-Vee is not on the list
>of Top Tier stations at toptiergas.com, so I doubt
>Hy-Vee is Top Tier.
>
>On Hy-Vee, the car once idled at only 600 rpm; I've never
>seen it idle so low. Usually 650 to 700 is the lowest it'll
>idle at. It could have been a coincidence that the one 600
>idle happened under Hy-Vee.
>
>Quoting the Break Time page at the MFA Oil web site:
>
>"TOP TIER Gasoline is a new class of gasoline with enhanced
>detergency. It meets new, voluntary deposit control standards
>developed by four automotive companies - BMW, General Motors,
>Honda and Toyota - that exceed the detergent requirements
>imposed by the EPA.
>
>"TOP TIER Gasoline keeps engine parts cleaner by reducing
>fuel-related deposits, resulting in better performance.
>A lower level of detergent may cause a buildup of deposits on
>critical engine parts. These deposits can cause stalling,
>rough idling, lowered acceleration and other unnecessary
>problems in your vehicle--and your life.
>
>"TOP TIER Gasoline:
>
>* Improves fuel efficiency
>* Prevents driving upsets (rough idle, hesitation, stalling
> and surge)
>* Improves acceleration
>* Provides more power
>* Reduces emissions
>* Cleans dirty engines and keeps new engines clean
>
>MFA Oil Company is proud to join industry leaders by requiring
>TOP TIER Gasoline with higher levels of detergent in all grades
>and every gallon of gasoline at Break Time Convenience Stores.
>
>Link:formatting link
Two tanks of the non-brand gas and you already have problems ? I think it's all in your head. hy-vee is not a gasoline manufacturer. They buy their gas from one of the big names. There is nothing wrong with the gas, the only difference could be in detergents. Results will only show up after many many miles, if ever. Buying higher grade gas than what the manufacturer of your car specified is a waste of money. If you really want to feel better , add a bottle of techron or seafoam to your tank every 6 months and buy the cheap stuff. The only gas I don't buy is from small gas stations that don't sell a lot of gas. They might have old gas and cut corners when changing filters in their pumps.