 | | Question: | | Creamy Substance on Dipstick from Rotary Engine | | When checking the oil level I found the dipstick had a white creamy like substance on it. I phoned the dealer who told me this was normal for a rotary engine. I asked if any seals or gaskets had gone, and he said 'no, car is running ok.' Any info? | | -- Dale Allan, Mintlaw, AK | | | Answer: | The only time we see a white, creamy substance is with oil in the presence of excess water. The white substance is due to the oil forming an emulsion with water. Have you had to add coolant to your engine lately?
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