cause driveability problems, reduced economy, higher
Whether this is true or not depends on the brand and local distributor. In
the Tribune article you quoted Exxon claims:
"All our fuels are already blended to meet or exceed Top Tier standards,"
said ExxonMobil spokesman Russ Roberts, adding that he wouldn't comment on
whether the oil company plans to join the program."
Even the Babcox article did not claim that all premium included increased
cleaning agents compared to all regular gasoline. It was more a warning
about low quality gas than a claim about the superiority of premium versus
I have noticed that Shell is now selling premium that supposedly includes
increased cleaning additives. But on the other hand, they also claim that
their regular has adequate cleaning agents. As a result I am avoiding Shell
stations until they stop trying to mislead people into spending an extra
$0.20 a gallon. I also stay away from unbranded gas since I suspect they are
less religious about meeting EPA requirements regarding the addition of
cleaning aganets. I prefer Chevron, Philips, and BP gasoline. I am now
staying away from Shell and Texaco (most Texaco stations are actually Shell
stations anyhow - at least until the rebranding is completed).
You don't need premium gas. Most likely what you do need is a new IAC Valve.
These clog up. When this happens, they can't adjust the air flow to maintain
the idle and the truck dies. It is a common problem for later model Fords.
The part is in the $100 to $130 range. A dealer will charge you $65 to $100
to diagnosis the problem and 1 hour or so of labor to replace it (actually
in is a15 minute job). Figure on a dealer charging around $250 to $350 to
the problem. If you are handy, the IAC is easy to remove and cleaning it
often restores it to functionality.
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