Why is my engine oil level going up?
Rising oil levels are typically caused by fuel leaking past the piston rings and diluting the engine oil with gas. Because standard diagnostics often yield mixed results, car owners struggle to pinpoint the underlying issue while dealing with a vehicle they rely on for daily transportation.
What people tried
Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.
Found another way around this?
Share your steps and trade-offs so fellow engineers don't have to reinvent the wheel. No account required.
- 1Using an OBD scanner to check sensor readings and fault codesDid this help you?
- 2Inspecting fuel injectors and the DPFDid this help you?
- 3Checking for broken wiring or sensor failuresDid this help you?
- 4Using fuel injector cleanerDid this help you?
- 5Researching online about whether the issue stems from the fuel pump or injectorsDid this help you?
In their words
Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.
“Now today I noticed a leak and it appears to be oil mixed with Gas?”source ↗
“I'm at a loss as I don't know much about cars.”source ↗
“Unfortunately this is my only source of transportation for work until this weekend. :/”source ↗