1987 Mercedes 300SDL with WVO conversion (Florida) - $3900

VIN: WDBCB25D1HA291658

This Benz has a complete two-tank WVO conversion kit installed and working with over 5,000 miles run on WVO.

I am the second owner of this vehicle, having taken ownership last year after the original owner passed away. The car has been a daily driver since new and was purchased new from Lokey Mercedes in Clearwater, FL. I bought it from his mechanic, who said the owner frequently travelled from Florida to Oregon and spent every necessary dime keeping the car in top shape, as the condition will attest despite the high mileage (399K). This one was the top-of-the-line luxury model with all the bells & whistles. Long wheelbase. Very roomy inside and comfortable on long trips. All maintenance up to date. Just replaced battery, starter, wheel bearings and front pads and rotors. Runs, stops, and handles beautifully. No transmission flaring, but occasionally shifts hard between 1st and 2nd at low throttle.

WVO Conversion components:

• 40-gallon poly marine tank

• Carter auxiliary fuel pump

• Hose-in-hose fuel delivery setup using 3/8” aircraft aluminum alloy lines and marine-grade heater hose

• 32-plate heat exchanger (FPHE)

• Switch-activated heated fuel filter with water separator and 10-micron element

• Fattywagon injector line heaters

• Pollak six-way selector valve

• Auxiliary gauges for WVO fuel level and temperature

Ice-cold AC

Tinted windows


Power Seats

Power Windows

Power Mirrors



Factory First Aid Kit

Full sized spare wheel & tire

Extensively researched and carefully planned WVO conversion. I recently replaced the 80-degree thermostat with an 85-degree thermostat, which circulates coolant through the HIH (hose in hose) setup and heat exchanger, to ensure a proper combustion temperature. Aided by the heated injector lines, you can be assured of proper temperature for combustion. I “cut” the veggie oil with a little diesel (80:20 WVO to diesel blend) and have had no issues. The car is always started up on diesel and purged with diesel before shutdown to ensure the WVO does not cool and gel inside of the injection system. Car runs clean and fuel economy has been comparable to straight diesel on the WVO blend.

Minor cosmetic flaws: clear coat is peeling on the roof; has several door dings; some scuffing and chaffing on the bumpers. Inside, there is a crack on right side of dash and the center front armrest could stand to be recovered (you can get new covers on eBay for $65).

The only electrical component not working on the car is the electric antenna. The central locking system works fine, as do all four window motors, sunroof, seat adjustments, and even the clock! This car was built to last and should provide many more years of service. I am selling it due to lost interest in the process of collecting and filtering grease (with a gentle push from my spouse).

I intend to keep the radio, but will negotiate the final price accordingly.

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