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Summary: Test oil color when looking for coolant problems, making sure that the oil is clear, brown or black, not green; learn more in this free auto-restoration video on diagnosing a cracked cylinder.
Views: 1,691 | Tags: repair, body, shop, car, head, automotive, restoration, gasket, cracked, cylinder, auto repair, car repair, classic cars
About the Expert
Doug Jenkins Doug, of “Doug Jenkins Custom Hot Rods”, not only servers the entire nation, but even customers outside the U.S have found the shop's services indispensable. ... read more
DOUG JENKINS: Hi. I'm Doug. I work with 20 great guys in St. Louis at Doug Jenkins Custom Hot Rods, and we're going to do some work for you today on Expert Village. One thing we check when looking for coolant problems--the customer complained about burning coolant--is we check the oil, and if you look at it, it shouldn't be green. This is a little bit milky-looking. The green in the oil is from the coolant. It should be either clear or kind of brown-black. This green color is making me think there might be a coolant issue like the customer said.