amascio

Back when gas was $4+ a gallon, Texas had a sting operation to make sure that the pumps weren't shorting the customer. They found out more than that: much of the regular gas tested was less than 87 octane.

Since then, I run a tank of regular followed with a tank of mid grade, hoping they average out to a "strong" grade of regular. Maybe I'm paranoid, but it couldn't hurt.

Using a motor oil with low volatility would do more to help with valves deposits than anything else.

And don't forget to blow her out once in a while......

isthatahemi

Sounds to me like y'all have bought into someones fear-mongering. Why on earth would you need to worry about a high pressure injector getting carbon'd up? I would think the high pressure solvent blasting through it over 10 times a second should keep things in order......

MadocHandyman

I started this thinking that the cheaper gas was "dirtier" so to speak. Therefore, my thought was using a decent additive to counteract this or just use the better gas.
I'm not really worried that it'll carbon up, if its going to so be it, just thought I could help it run cleaner and better with the cheap gas.
Now even if it did help, the additive would still have to be cheaper than the good gas or it would be just stupid to even bother.
I guess I didn't really word my original post properly.

69428SCJ

TOP TIER Detergent Gasoline Retailers

Gasoline retailers must meet the high TOP TIER standards with all grades of gasoline to be approved by the automakers as providing TOP TIER Detergent Gasoline.

In addition, all gasoline outlets carrying the brand of the approved retailer must meet the TOP TIER standards.

Additional gasoline retailers are added to the TOP TIER list as they meet the standards. The retailers known to be on the TOP TIER list are shown below.

TOP TIER Gasoline Retailers:
USA Canada
76 Stations Chevron Canada
Aloha Petroleum Esso
Chevron PetroCanada
Conoco Shell Canada
CountryMark Sunoco Canada
Entec Stations
Exxon
Holiday Stationstores, Inc.
Kwik Trip / Kwik Star
MFA Oil Co.
Mileage Stations
Mobil
Phillips 66
Quik Trip
Rebel Oil
Road Ranger
Severson Oil
Shell
Texaco
The Somerset Refinery, Inc.
Tri-Par Oil Co.
U.S. Oil


Buy from these guys and you will get the same detergents across all levels of gasoline....don't and you wont

MadocHandyman

The only one on the list that I have available, is Petro Canada.
Recently we have acquired an Ultramar.
I can buy 89 at Ultramar for the same price as Petro's 87. Just not sure of the quality of the Ultramar gas.
There are other reasons I won't buy my gas at this Petro anymore as well.

69428SCJ

The notable ones missing for TEXAS drivers are VALERO and RACETRAC. Their prices are typically some of the lowest in the State....missing some detergent it would appear. It would be nice to know who brings HEB/KROGER/SAM'S/WALMART and COSTCO their fuel.

I buy 60-70% of my fuel at QUICKTRIP. Prices are fair and the stores are nice.

pprior

Guys, the point of direct injection is that the fuel additives are not getting into the intake before the cylinder. Therefore it doesn't make a bit of difference what type of gas you run. It's crankcase ventilation and oil that makes the difference. Lots of short trips without high RPM and high engine temperature have been reported to make a difference in German engines, don't know about the Ford.

http://www.autoobserver.com/2011/06/...-adopters.html

MadocHandyman

Excellent! Thanks for sharing this.

11screw50

its not really 'fear mongering', the problem does exist in a number of engines and to date, I hadnt seen one explanation that Ford was doing anything differently (the article linked in this thread seems to put the matter to rest).

EBinMT

Had you clicked the link above and read the article you would have found this...

Although it is not a quote about our 3.5 ecoboost, it does show that Ford is aware of this and has worked to minimize carbon build up in DI motors.