Quote:
Originally Posted by Hoojs12840
Cetane booster? Is this required for Fords or is it an additive like STP is for gasoline?
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Quote:
Originally Posted by gearhead
It's not required. It's an additive that helps combustion. Like octane it is a chemical that is used as an index.
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I'm using the Ford/Motorcraft PM-22 and around here it is almost mandatory.
The fuel in Texas is pretty much all some level of Bio between 5% and 20% so you never know if there is enough cetane to make the motor run.
When I first bought my '12 I filled up at the same station I'd been using for years as they have plenty of volume to keep the tanks clean. I never really noticed anything for a couple of tanks then I filled up at another station on the other side of the state and the motor was quieter and ran much better. That set me to researching the WHY....
That lead me to cetane levels, lubricity of fuel and that lead me to PM-22
I've never been one to use additives but I took the plunge and tried a couple of bottles...
Man what a difference, fuel mileage went up using the local fuel and the engine ran a good bit quieter. I was sold..
Sure, sometimes I get good fuel with a sufficient amount of cetane, but the PM-22 is also a lubricant for the fuel pump and the less bio in the fuel the dryer the fuel.