[Delta Flyer]

This is worth repeating: regular oil changes is probably the best thing you can do for your car. It's out of print, but the author of Drive it Forever listed four things that an oil change purges:

• Dirt[/*:m:3vecrioc]
• Acid buildup[/*:m:3vecrioc]
• Sludge (oil and water does mix under the pressures inside of an engine[/*:m:3vecrioc]
• Motor oil that is losing it's viscosity. Your 0w-20 will move towards 5w-15.[/*:m:3vecrioc]

 

[Delta Flyer]

Religion, Politics, and Oil Change Intervals {grin}

Wouldn't it be great to get a few auto engineers to talk about oil change intervals here? I typically go 4-5K with synethic oil. I was told that varied driving was the best way to "break" a new car in, but this does not seem to be advocated as much these days.

Changing the oil frequently should not be an enviromental hazard if the user takes the oil to a gas station that has a tank to dump it in. Will M makes a good point in the resources to build a car. If car parts were easier to recycle, it would be better for the enviroment. Same for PCs. Their is a sliver lining to the Insight being few-of-a-kind: it's unattractive for car thieves to steal.

I heard that synethic oil was invented by the Germans for use on the Russian front. It would be interesting if anyone knows more on it's history.