Can you report back on your dipstick appearance after the change? I had a stealer do one recently and the oil was thin but still quite a bit of soot on the dipstick, etc.
FS:Sub Amp - works w/ Technic harness! MRD-M300 - cheap
DON'T BUY FROM RAF555!!!! Promised fix! - strung me along til Paypal dispute period expired!