Propane Motor Fuel
Proulx Oil and Propane has recently been named the New England Representative for the American Alternative Fuels Equipment used for propane motor fuel conversion. This product uses propane, a Green Fuel, as the primary or can be used as a supplemental, but in all cases provides you, the customer, a DUAL FUEL option for your transportation fuel. This technology applies to consumer vehicles as well as commercial, industrial, and municipal fleet operations.
The primary benefits of the propane vapor injection systems for either fuel are:
- Lower fuel costs
- Better performance
- Cleaner tailpipe emissions
- Using propane, a greener fuel than traditional gasoline OR diesel applications
- Conversions done locally by expertly trained technicians provides local employment stimulus
Savings Calculator for Prins VSI Conversion Program
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The propane into diesel engine injection approved list is basically ANY DIESEL BURNING engine. The propane into gasoline engine injection approved list is provided below. Installation and payback on the investment varies by the number of miles driven per vehicle.
The Prins System is currently EPA-certified for these vehicles:
- 6.8L Heavy Duty V-10 Engine Cert
- 8.1L Heavy Duty V-8 Engine Cert
2005 Model Year:
- 5.4L Ford F-250 2WD and 4WD
- 5.4L Ford F-250 2WD and 4WD Bed Delete
- 5.4L Ford F-350 2WD and 4WD
- 5.4L Ford F-350 2WD and 4WD Bed Delete
2006 Model Year:
- 6.0L 1500 Truck
- 6.0L 2500 Truck
- 6.0L 3500 Truck
- 4.6L Ford Crown Victoria
- 4.6L Ford Crown Victoria Police Package
- 5.4L Ford F-250 2WD and 4WD
- 5.4L Ford F-250 2WD and 4WD Bed Delete
- 6.8L Ford F-250 V10
- 5.4L Ford F-350 2WD and 4WD
- 5.4L Ford F-350 2WD and 4WD Bed Delete
- 6.0L GMC C2500 Sierra 2WD
- 6.0L GMC C3500 Sierra 2WD
- 6.0L GMC K2500 Sierra 4WD
- 6.0L GMC K3500 Sierra 4WD
- 4.6L Lincoln Mercury Town Car
- 4.6L Lincoln Mercury Grand Marquis
2007 Model Year:
- 4.6L Ford Crown Victoria
- 4.6L Ford Crown Victoria Police Package
- 5.4L Ford F-250 2WD and 4WD
- 5.4L Ford F-250 2WD and 4WD Bed Delete
- 6.8L Ford F-250 V10
- 5.4L Ford F-350 2WD and 4WD
- 5.4L Ford F-350 2WD and 4WD Bed Delete
- 6.8L Ford F-350 V10
- 6.8L Ford F-450 V10
- 5.4L Ford E-150 Club Wagon
- 5.4L Ford E-150 Van 2WD
- 5.4L Ford E-250 Van 2WD
- 5.4L Ford E-350 Van 2WD
- 4.6L Lincoln Mercury Town Car
- 4.6L Lincoln Mercury Grand Marquis
2008 Model Year
- 4.8L HD V8 GM over 14,000 LBS any vehicle (Propane Dedicated)
- 4.8L HD V8 GM >9500 LBS but <14,000 LBS any vehicle (Propane Dedicated)
- 4.6L Ford Crown Victoria
- 4.6L Ford Crown Victoria Police Package
- 4.6L Ford F-150 2WD and 4WD
- 5.4L Ford F-150 2WD and 4WD
2008 Model Year (cont.)
- 4.6L Ford F-150 STX SE 2WD
- 6.8L Ford F-250 V10
- 6.8L Ford F-350 V10
- 6.8L Ford F-450 V10
- 5.4L Ford E-150 Club Wagon
- 4.6L Ford E-150 Van
- 5.4L Ford E-150 Van
- 5.4L Ford E-250 Cutaway
- 4.6L Ford E-250 Van
- 5.4L Ford E-250 Van
- 5.4L Ford E-350 Club Wagon 5.4L Ford E-350 Cutaway
- 4.6L Ford E-350 Van
- 5.4L Ford E-350 Van
- 5.4L Ford Expedition 2WD and 4WD
- 4.6L Lincoln Mercury Town Car
- 4.6L Lincoln Mercury Grand Marquis
- 5.4L Lincoln Mercury Navigator 2WD and 4WD
- 5.4L Lincoln Mercury Mark LT 2WD and 4WD
2009 Model Year:
- 4.8L HD V8 GM over 14,000 LBS any vehicle (Propane Dedicated)
- 4.8L HD V8 GM >9500 LBS but <14,000 LBS any vehicle (Propane Dedicated)
- 4.6L Ford Crown Victoria
- 4.6L Ford Crown Victoria Police Package
- 4.6L Lincoln Mercury Town Car
- 4.6L Lincoln Mercury Grand Marquis
2010 Model Year:
- 4.8L HD V8 GM over 14,000 LBS any vehicle (Propane Dedicated)
- 4.8L HD V8 GM >9500 LBS but <14,000 LBS any vehicle (Propane Dedicated)
- 4.6L Ford Crown Victoria
- 4.6L Ford Crown Victoria Police Package
- 4.8L GMC Savanna Cargo 2500
- 4.8L GMC Savanna Cargo 3500
- 4.8L GMC Savanna Passenger 2500
- 4.6L Lincoln Mercury Town Car
- 4.6L Lincoln Mercury Grand Marquis
2011 Model Year:
- 6.0L V8 GM any vehicle over 14,000 LBS (Propane Dedicated)
- 4.8L HD V8 GM over 14,000 LBS any vehicle (Propane Dedicated)
- 4.8L HD V8 GM >9500 LBS but <14,000 LBS any vehicle (Propane Dedicated)
At Proulx Oil and Propane, we will have our entire delivery fleet operating on the AAF equipment with near future commitments to propane vapor inject 100% of our fleet as a way to reduce our own footprint in bringing energy to our customers.
Please check back soon as we will be providing additional information about this new and exciting re-birth of an application for propane!

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