This one says: Time spent on the toilet in an average personâs lifetime: 525,600 minutes. http://www.thecrimson.com/article.aspx?ref=350161 Nov 12 08, 10:43 PM
Compression Ratio is defined as the ratio of Maximum engine volume to minimum engine volume. In Mechanical Terminology, its ratio of Total Volume to Clearance Volume. It is fundamental specification of engine. For Spark Ignition engines, the ratio will be around 10:1 to 15:1.
Your gas engine has a compression ratio of anywhere from 5:1 to 8:1 while a diesel engine runs from 13:1 up to 18:1 and so needs to use only a premium oil to protect it better. The diesel service oil also needs to be higher detergent in order to suspend the carbon particles inherent to their operation.