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In my 05 I don't see any improvement but use Schaeffer every tank for increased lubricity protection.
This is what they say Schaeffer can do?
Product Benefits
• Mileage Improvement
• Horsepower Improvement
• Cetane Improvement
• Emission Reduction
• Cleans Injectors
• Inhibits Corrosion
• Controls Moisture
• De-Icer
• Lowers Cold Filter Plugging Point
I buy it by the case run around $.60 a tank, cheap piece of mind.
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