gas additives
I know there is a lot of talk about sta-bil and sea foam, but has anyone used Lucas gas treatment in their vehicles or gen sets. talked to my DW's cousin and he said he got quite an increase in gas mi...
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jfkmk wrote:JaxDad wrote:jfkmk wrote:
Unless your fuel system is gunked up you won't see an increase in mpg from any of these additives.
If you purchase top tier fuels, you'll never have to use an additive. Does anyone really believe that adding a few ounces of snake oil to 20 or so gallons of fuel will miraculously give them a significant increase in gas mileage?
I don't believe your first statement is quite correct there friend. It's actually pretty common to have dirty O2 sensors these days.
If the O2 sensors are dirty they're giving inaccurate readings to the ECM which will then erroneously adjust the mixture into a too rich condition.
It not be out of the ordinary to pick up 10% in fuel mileage once the ECM is getting accurate readings.
Additives like SeaFoam will clean those sensors where the stock additives won't.
The OBD II will typically throw a code and illuminate the CEL if the O2 sensor is reading outside of a normal range, such as if the sensor is dirty.
I'm not sure how Seafoam and others are going to clean a sensor located downstream of combustion.
'Typically' you'd be right, but in the real world you probably wouldn't.
The O2 sensor, as the name suggests, senses O2 and when the sensor reading goes lean (low voltage)mand the computer makes the fuel mixture go rich, so when the sensor is fooled by to much 'oxygenates' (corn squeezin's in this case) it enrichenes the fuel mixture.
SeaFoam (and other quality fuel system cleaners) counteract this, if you follow the instructions by flooding the engine with it, by dissolving these deposits and chemically cleaning the sensors.
