When idling at operating temperature, my engine intermittently shudders for less than a second with an interval of maybe 10 - 30 seconds. Torque tells me that the RPM drops to ~560 during the shudder then shoots back up to ~630 before instantly leveling back to ~600. The LTFT is about -9 to -11 at idle but gets to -2 to -5 when driving.
The horrible yellow dipstick was consistently in a quantum superstate of "full" and "low", showing a thick oil coating at both markings but nothing between them. I interpreted this to be "low" and added until the two middle dots were covered. This didn't solve the issue.
Is this anything I should worry about or should I just leave it alone? I'd prefer to not throw parts at it unless it's a sign of bigger problems.
Thanks!
The horrible yellow dipstick was consistently in a quantum superstate of "full" and "low", showing a thick oil coating at both markings but nothing between them. I interpreted this to be "low" and added until the two middle dots were covered. This didn't solve the issue.
Is this anything I should worry about or should I just leave it alone? I'd prefer to not throw parts at it unless it's a sign of bigger problems.
Thanks!