Pinging with 87 Octane and Black Bear Tune

[Jmat]

***UDATE*** It has been four days since I added a few gallons of Shell 91 and a bottle of Lucas octane boost to my tank & I'm happy to say that the pinging is completely gone. Obviously that rules out a mechanical issue with the engine and points to crappy gas as a culpurate. To test this assumption further I'll go through this entire tank and refill with Shell 89. Since my tune is rated for 87/89 octane I'm hoping good quality 89 will do the trick. Costco gas may have been fine to use with my stock tune but it appears that a BB tune requires higher quality fuel. I'll chime back in once the 89 is in. Thanks to all your feed back I was able to narrow down the possible cause. Much appreciated!

 

[JennaBear]

You should see much better results from the tune with the better quality gas as well. Be sure to send Justin a log with the new gas in it.

 

[Jmat]

Will do Jenna. Thanks.