Nice procedure, good call on letting it drain overnight! I did it all quick (well all while hot'ish)
I'm sure I didn't get all the old oil as I had to use the pump in the dipstick method, but was surprised to get 5 gallons out of 8v71's. I was also surprised after refilling and warming up not to see much if any oil discoloration from old oil. One side was cleaner that the other though. Next time I think I will try to get some hoses installed on the drain plugs in preparation for an oil change system. I also didn't try to flush any clean oil through, but I don't think that would be nearly as effective with the pump in the dip stick method as there is no way to know for sure how far down you are pumping. Next time I think I will be ready with new fittings etc. to hook to the oil pans after getting the oil out through the dip stick.
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08-31-2022 08:39 AM #31Senior Member
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Re: It's oil change time.... never done it.
1980 53' Hatteras MY, Hull # 592
"Moon River" <-- Finally picked a name
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Re: It's oil change time.... never done it.
First thing, if you are going to take the oil pan drain plugs out, drain all the oil through the dipstick tubes, then wait overnight and drain it again, then have a lot of diapers on hand when you take the plugs out. You will need to pre-measure for all your lines AND bring the hose shop the drain plug so they can match up the threads. Also, make sure that the hose ends that they use are the kind you can turn with a wrench without turning the whole hose. Use the best hose they have- the hoses take a beating. This is one installation where it is essential to use the best of everything you can get.
I don't use the oil change system to pump the new oil in, but you can. I buy 5 gallon buckets and use a hand pump I got off Amazon to pump the oil in the top of the engine.