Remember the old "Put a Tiger in Your Tank" ads from Esso/Exxon? Now you can put an animal in your crankcase.

G-Oil, from Green Earth Technologies, is the first-ever eco-friendly, biodegradable motor oil made from American-grown, renewable animal fats. (I'm thinking like bacon grease, only much thicker. And less tasty.)

These saturated fats have molecular single-bond carbon chains similar to common petroleum oils, but have no harmful effects on the environment. (Or on the animals.) And while it takes three barrels of crude oil to make one barrel of motor oil, it only takes one barrel of animal fat to produce one barrel of G-OIL.

And if you're thinking that pouring a few quarts of fat-based oil into your car will make the engine squeal rather than purr, G-Oil has met and passed all the engine test criteria for The American Petroleum Institute (API) SM Certification, their highest rating. And it costs the same or less than traditional motor oils.

Available in a variety of weights from 5W-20 to SAE-30, you can get better performance from your engine, while lessening your environmental impact. Might be time for an oil change.

www.getg.com