Translations:AY Honors/Pinewood Derby/Answer Key/51/en

Liquid lubricants have several advantages to dry lubricants, the main one is that they tend to last longer. Graphite usually starts to wear out after a handful of heats while most oils will last for 10-20 heats. So if your race involves more than 4 heats a graphite lubricated car will be at a big disadvantage. Oil if used properly is also usually a faster lubricant than graphite. The disadvantages to using a liquid lubricant are that they are more expensive, and some liquid lubricants can melt the wheels. If you use a liquid make sure that it is approved for use with pine cars.