Hey, your SUV smells like tempura

updated 1:19 p.m. ET Sept. 3, 2007

MALIBU, Calif. - Colette Brooks’ sprawling ocean-view property is dotted with tricked out cars — from a low-rider Lincoln Continental to a Cadillac with plush leather seats.

But it’s her 1996 Chevy Tahoe that turns the most heads with a rear window decal declaring “It’s time to kick gas” and a personalized license plate reading “OFFOIL.”

The petite 49-year-old business owner might be a car junkie, but she’s indulging her obsession without polluting the air by running her rides on biodiesel and other alternative fuels.

“I feel so superior driving next to a Hummer and going, ’Dude, yo, look at this, this is what you should be doing,”’ Brooks said.

With her earth-friendly car finder service, Biobling, Brooks is one of many entrepreneurs turning gas guzzlers into green machines as the interest in alternative fuel steadily spreads nationwide. Auto shops and online-based businesses are popping up in places as diverse as Maui, Hawaii, Louisville, Ky., Easthampton, Mass., offering do-it-yourself conversion kits, recycled vegetable oil, fuel delivery, and other services.

Current concerns about climate change, high gasoline prices and uncertain availability of foreign oil have brought increased interest in alternative fuels.

Hybrid vehicles such as the Toyota Prius are on track to achieve record U.S. sales this year, according to J.D. Power and Associates, and a growing number of gas-electric models are entering the competitive auto market.

Reed Saxon / ASSOCIATED PRESS “I feel so superior driving next to a Hummer and going, ’Dude, yo, look at this, this is what you should be doing,”’ Brooks says. She might be a car junkie, but she’s indulging her obsession without polluting the air by running her rides on biodiesel and other alternative fuels.

Brooks and other small business owners like her want to appeal to people who love attention-grabbing cars but don’t realize they can drive them and leave a smaller tread mark on the environment.

LoveCraft Bio-Fuels in Los Angeles has converted more than 1,400 vehicles to run on vegetable oil by installing a system of heaters, pumps and filters. Its most famous client was Gov. Arnold Schwarzenegger, who modified one of his Hummers.

“To take the vehicle that symbolizes one of the worst environmental violators and get it to run on vegetable oil was pretty cool,” LoveCraft co-founder Brian Friedman said.

Brooks runs Biobling with her husband, Eric Cadora, who scours the Internet to help clients find used cars that can run on biodiesel. The couple charge a 10 percent finders fee and more if the vehicle gets tricked out with custom paint, wheels or decals.

Brooks began promoting green cars when she bought a Prius in 2002. After discovering its benefits, she bought a fleet of hybrids for employees at her advertising and marketing company.

Two years later, she was amazed to learn that any old diesel car could run on biodiesel with little or no modification. That’s because it’s made with plant oil refined to remove a sticky compound called glycerin that would otherwise harm engines. The concept dates back to the late 1800s when the first diesel engine ran on peanut oil.

She set off by buying a diesel Mercedes. Her collection grew as she trolled through e-Bay and other Web sites for old muscle cars she’s coveted since she was a little girl.

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