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Straight Vegetable Oil (SVO)

The Silver Bullet Dasher:
Powered by Biodiesel and SVO/WVO

Grease Works, is now offering SVO/WVO (we use these terms interchangeably) parts, heaters, and, converted cars, and full conversions at the Diesel Shop in South Corvallis. Heaters and parts are competitively priced, as are conversion costs which range from $2000-$4000 (depending on the vehicle and the number of bells and whistles) including parts and labor. Check out our Online Store for our latest time-tested SVO and biodiesel products. For more info, please contact us via email here, or call us at 541-754-1897.

Heard of SVO or WVO before before but not sure what exactly it is or how it works? Here is a brief primer on the basic principles of this alternative fuel:


Diesel History:

Contrary to popular Grease Lore, the first "diesel" engine (dubbed the "Black Mistress") designed by Rudolf Diesel in 1893, ran on gasoline vapor, albeit rather disastrously (this prototype engine blew its test gauges sending shards of broken glass and brass throughout the workshop). In the years that followed Diesel refined and redesigned his engine and discovered in the process that this engine can run on nearly any hydrocarbon, including such unlikely suspects as shale oil, refinery tailings, coal dust and, get this: peanut oil.

Using Vegetable Oil as a fuel:

Modern day diesel injection systems, having been engineered for thin, low-viscosity diesel fuel, cannot handle high viscosity vegetable oils--unless, however, the viscosity is reduced. This can be accomplished two ways: chemically (trans-esterifying the oil into biodiesel); or thermally. By heating the oil to 160-180* F the viscosity is reduced to that of diesel fuel and, voila!, Sir Rudolf Diesel has his dream revisited.

Leaning on the ethos of Permaculture ("nothing in the system goes to waste"), heating vegetable oil in a vehicle is accomplished by tapping into the coolant system and employing a simple heat exchanger in an auxiliary SVO/WVO dedicated tank. Alternatively, 12-volt electric heaters may be used to heat the tank, as well as inline, to heat the oil before it reaches the injection pump.

This is an oversimplified rendition, but the principle is solid: Heat the oil with waste heat from the engine (or electricity) and you've got yourself a renewable, sustainable alternative fuel.

Grease Works offers custom installations and custom kits as well as generic kits that include the primary heaters, filter and valves for a bomber SVO conversion. Our shop installed customSVO/WVO kits are the only available in the industry that come standard with biodiesel resistant hoses such as Viton to ensure your long term success when running on SVO/WVO and biodiesel. We have seen countless SVO/WVO systems most of the major kit retailers here in North America, with hoses that were either completely degraded or well on the way. Much like biodiesel only a bit slower, vegetable oil will degrade PVC (both clear and braided), and buna-Nitrile (standard automotive fuel hose), as well as most other off-the-shelf fuel hose. Check out this page for more info on hose compatibility.

Our SVO/WVO kits come in a variety of configurations depending on your specific vehicle/driving habits as well as climate, including: 12v in-line heater, in-line coolant heater, coolant/12v heated 5-micron fuel filter, 120v/12v stick-on heater pad (for tanks), 12v heated fuel lines, coolant heated fuel lines (HIH, HOH, etc), aluminum tank with or without fuel level sender, heavy-duty custom made stainless steel (w/Viton seals) 3-port fuel solenoid selector valve, lighted dash indicator, etc.

Our Pacific Northwest “Standard” (PNWS) system includes everything you need to run non-hydrogenated SVO/WVO in mild/temperate climates such as the maritime Pacific Northwest, and most of coastal California. How do we know that these systems work without a heated tank/lines? Because we test them winter after winter, and we have hundreds of successful conversions out on the road today and have tens of thousands of road miles under our belt.

The PNWS includes:
• New 10-40 gallon Aluminum fuel tank—Unheated (used or heated tank also available)
• Biodiesel-resistant fuel hose (Viton or comparable)
• 12v VegTherm “Standard” inline heater (16 amp, fuse protected/relay controlled)
• Custom Aluminum inline coolant fuel heater (Artic Fox Midranger or Linehauler available as an upgrade)
• Heated SVO Filter (heated via either coolant or 12v, customer’s choice)
• Two heavy-duty stainless steel 3-port fuel selector solenoid w/Viton seals
• Dash mounted lighted switch
• Mounting hardware, nylon ties, hose clamps, etc.

For most passenger car applications this system costs around $1500 including the tank and fuel/coolant hoses/fittings, relays, switches, etc.

Extras include:
• 12v/120v heated tank ($100-$250 for heater, installed)
• 12v heated fuel line ($250 and up, installed)
• HOH/HIH heated fuel line (~$50-$150 installed)
• SVO fuel level sender/gauge (~$100, installed)
• Temperature sensor/gauge (~$100, installed)
• Custom Aluminum or Stainless Steel tank ($350 and up)

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