(05-03-2018, 12:00 PM)Jim21680_imp Wrote: Maybe 10-15 ounces? The oil cooler itself is easy to remove and drain, even if it does make a bit of a mess. It's the lines that I shouldn't have touched.

(05-07-2018, 12:21 AM)peterbaron_imp Wrote: Whatever was said RE: Missed Oil Change Step? ...OK
I am not going to fight for a 1/3 glass of engine oil.....
Bottom line for me:; drain and fill hot. OEM. Any automotive engine with normal maintenance/driving condition. Period

pb

(05-06-2018, 08:10 PM)Cormanus_imp Wrote: I met a man yesterday who told me his oil change technique is to drain the oil and then fill his engine with 5 liters of diesel. He then cranks the engine a couple of times without allowing it to fire and then drains the engine again. He claims it purges a great deal more oil from the sump and the filter than is normally the case.

(05-06-2018, 08:10 PM)Cormanus_imp Wrote: I met a man yesterday who told me his oil change technique is to drain the oil and then fill his engine with 5 liters of diesel. He then cranks the engine a couple of times without allowing it to fire and then drains the engine again. He claims it purges a great deal more oil from the sump and the filter than is normally the case.

(05-07-2018, 06:23 AM)tuareg_imp Wrote: Diesel would dissolve(or rather suspend) most of the sticky deposits, that's for sure. But then, after draining the dirty diesel, there'll be more than a few ounces of diesel remaining in the sump and non-drainable areas, which will serve to dilute the fresh engine oil . Which is something we don't want. So methinks diesel treatment would(or could) do more harm than good.
An alternative would be what we used to do with marine engines in the past: After hot draining the oil, fill with SAE 10 or 30 and run for a few minutes, then drain and fill with fresh oil. But those were ancient diesels.
With today's modern engines and synthetic oils, I honestly don't think a little sludge at the bottom of the sump will not do any real harm. I'm sure Honda guys have thought about that So I'm not splitting any hairs on the remaining oil in the sump. Drain warm, fill up, ride, check level

(05-07-2018, 06:25 AM)2017EX_imp Wrote: My intent in starting this thread was just meant to be a helpful reminder that step one for oil changes, after warming the old oil, as described in the shop manual, is to remove the oil filler cap before removing the drain bolt, and or filter. I think many of us have found over the years, that removing the filler cap before the drain bolt, works a bit more efficiently. That said, I also agree that I am not going to worry about what little might still still be in the sump. I have never had a problem with any machine by following procedures spelled out in the Shop Manual, but have had problems from time to time when I experimented or deviated from the Manual.