I've taken the filter off, drained it and reused it with no problems for the last 40 years. What am I missing here?Once you remove the filter for any reason, you must replace it.
I've taken the filter off, drained it and reused it with no problems for the last 40 years. What am I missing here?Once you remove the filter for any reason, you must replace it.
Ok take a gallon jug of water and put 8 oz of mud, ink, pee ect. It's now contaminated. Oil gets fuel,dirt,wear materials in it.To paraphrase @dnewton3 - "Oil does not suddenly go bad because you decide to change it." in the OP's case, the oil that is being changed only has 4K km or 2,485 miles on it and the vast majority of the oil will be removed when it is dumped. Do we seriously think the small amount left in the filter will contaminate the new oil? Color me extremely skeptical.
Your example is like comparing apples to swordfish. The oil in the filter has been filtered at 20um @99% and 8 ounces of oil that has been used for 2,400 miles in a 192 ounce sump will hardly contaminate the new oil.Ok take a gallon jug of water and put 8 oz of mud, ink, pee ect. It's now contaminated. Oil gets fuel,dirt,wear materials in it.
I personally want most of that out at my oil change. If a filter sits sideways or upside down your ok but the O.P. oil filter sits upright, no oil will drain out.he might even use a larger O/s filter leaving more contamination to mix with the new fresh clean oil.
Filter will not filter out any fuel left in the oilYour example is like comparing apples to swordfish. The oil in the filter has been filtered at 20um @99% and 8 ounces of oil that has been used for 2,400 miles in a 192 ounce sump will hardly contaminate the new oil.
Just how much fuel is in oil at 2400 miles? We are talking about 8 ounces of oil, likely less. Most UOAs of much longer runs do not indicate there is any appreciable amount of fuel in the oil.Filter will not filter out any fuel left in the oil
I've taken the filter off, drained it and reused it with no problems for the last 40 years. What am I missing here?
I will keep changing my oil and filter, If I'm asked I would recommend that to anyone.Just how much fuel is in oil at 2400 miles? We are talking about 8 ounces of oil, likely less. Most UOAs of much longer runs do not indicate there is any appreciable amount of fuel in the oil.
All you have to do to a FI engine is hold the gas pedal all the way to the floor and crank the engine over for about 20 seconds. It ALWAYS fills the oil filter up with oil and no more wood peckers pecking on a street light noise.no dry start up either by leaving the long life filters in place as they are primed with oil. a minute extension of engine life over time may add up.
engine start ups sound smoother too.
He's not saying you need to floor to start it, he's explaining starting the engine in "clear flood mode" and turning it over with the starter for a few seconds to prime the oil filter.I’ve never had that issue with a fuel injected engine. Never needed to floor the throttle at start either.
Must be a particular engine?
10K km = 6.2K miles. A FRAM Ultra would not even blink at that FCI. The amount of "dirty" oil that will be left inside is insignificant. I would do it without thinking twice.
I do one OCI on ANY oil filter, including FRAM ULTRA.I go two oci intervals with all my ultras.