I tried out Costco gas in Laguna Niguel. It is me or i am going crazy. I felt a noticeable different between costco and chevron. I noticed that during traffic hour, ac and music blast pretty loud, the car felt noticeable lost of power. My friend with a 350z, he tried the same costco gas as me, felt the same.

I don't mean to knock down costco but it is me? I hope it is me that going crazy. I would love to use costco because save as much as 10-20 cents per gallon.

or should i revert back to chevron or mobil?

g35mt

 

I had that happen at Chevron on a pump with the big black accordian thing. I now have to go to another station and pump it carefully. My dealer ordered a filler tube ...when I first got the car it never happened though?
Pingo