Lighter wallet, hence, slightly better performance.

I just use dino oil.

 

"The proof of the claim lies with the claimant."

Keep in mind that the claims made by a manufacturer or vendor aren't to give you information, they're made to sell a product.

I want to see the irrefutable proof first before buying anything advertised to give more power. Then I'll consider the cost/benefits ratio. In other words, is it worth it for the gain?

 

Also consider that there are manufacturers out there that are claiming 50 horsepower, and 5 mpg gains from hooking up a 'chip' via two friggin' wires........ If that isn't false advertising, then I don't know what is.

 

I tried the E3 plugs a few years ago and didn't notice any change at all. Went back to champion plugs.