My 2007 Honda Civic Hybrid has been pinging for the last year or so. I live in a hilly neighborhood. I switched to a higher grade of gas, which has brought a little improvement, but not enough. My mechanics have done a Fuel System Service and are suggesting that a Valve Adjustment may be needed in the future. Is it time to get a newer hybrid?

 

https://www.greenhybrid.com/forums/f...g-howto-30730/

Don't remember the maintenance interval, but valves should be checked.