MustangWorks.com : Ford Forums - View Single Post - Fuel Frustration

Phillyfanfrombirth · 09-20-2005, 06:52 AM

Are you sure that the engine doesn't have hardened valve seats? Although they didn't come stock, most engine builders put them in... or at least ask to have them put in.

If it was rebuilt in the past couple years, my guess would be that it would have the hardened seats...

Otherwise, I guess it largely depends on your driving... If you are going to be doing some high RPMs more than frequently, I'd say that you should go with the additive.

As far as octane... my view is "no ping, no foul"...

09-20-2005, 06:52 AM	#2
Phillyfanfrombirth Registered Member Join Date: Dec 2004 Location: South Central PA Posts: 358	Re: Fuel Frustration - What do you use? Are you sure that the engine doesn't have hardened valve seats? Although they didn't come stock, most engine builders put them in... or at least ask to have them put in. If it was rebuilt in the past couple years, my guess would be that it would have the hardened seats... Otherwise, I guess it largely depends on your driving... If you are going to be doing some high RPMs more than frequently, I'd say that you should go with the additive. As far as octane... my view is "no ping, no foul"...