Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum - View Single Post - anyone using premium gas ?
View Single Post
Old 12-10-2011, 02:38 PM   #54
Focus Enthusiast
flingwing1969's Avatar
Join Date: Nov 2011
Fan#: 91700
Location: Morgan Hill, CA
What I Drive: 2012 white platinum Forcus SEL 303A

Posts: 468
Points 1,812, Level 25
Points: 1,812, Level: 25 Points: 1,812, Level: 25 Points: 1,812, Level: 25
Level Up 12% Completed
Level up: 12% Level up: 12% Level up: 12%
Forum Activity 1%
Activity: 1% Activity: 1% Activity: 1%
FF Reputation: 2 flingwing1969 Good Standing Member
Buy-Sell-Trade Rating: (0)
Originally Posted by Dgc333 View Post
Actually on pg 354 it talks about some parts of the country regular gas is 85 octane and that the car will run better on premium than 85.

It does not say it will run better with premium than the 87 octane available to most of us.

This is the third time in this thread i have mentioned this.
And you are correct, but many don't want to be bothered by facts. The fact is, if your car knocks moderately or heavily under load, including when starting from a stop, then it may be due to fuel with a low octane rating. In this case, change stations and run 87 octane, or switch to mid-grade or premium fuel with an indicated octane rating above 87.
2012 Focus SEL 303A, moon roof, etc
2012 Yamaha TW200 Dual Sport
1975 Jeep CJ -built
1974 Dodge W300 Power Wagon dump truck
2002 Kubota B-21 tractor-loader-backhoe
flingwing1969 is offline  
    Reply With Quote