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EFI oil injection/2001 BW Ventura 21
Manasota	#1  Posted on 04/13/20 - 9:47 AM
Member Posts: 22 Comments: 0 Joined: 04/01/20	Under normal operating conditions with little high RPM running, how many hours should I get before I have to add oil to the reservoir tank? I'm not sure that the gauge at the helm will give me a low oil warning or if there is a sounding alarm. I'm told the oil reservoir holds about 2 gallons. Running the original Mercury 225 EFI motor with 225 hours.
Phil T	#2  Posted on 04/13/20 - 12:03 PM
Administrator Personal Page Personal Album Project Albums Posts: 7043 Comments: 6 Joined: 03/26/05	Any mathematical formula will not be accurate. It is best to check the reservoir every 2 trips to learn its consumption based on your actual use. I would store a gallon on the boat for reserve. 1992 Outrage 17 I 2019 E-TEC 90, Viper 17 2+ 2018 Load Rite Elite 18280096VT
Manasota	#3  Posted on 04/13/20 - 5:24 PM
Member Posts: 22 Comments: 0 Joined: 04/01/20	Thanks Phil. BW should have put a dipstick on the cap to satisfy the automotive gearhead in me. Will keep a gallon and a flashlight on the boat.
biggiefl	#4  Posted on 04/14/20 - 10:13 AM
Member Posts: 890 Comments: 4 Joined: 05/08/06	Tanks like that need to be see through or have a dipstick in my opinion. You should get a warning but I don't like warning buzzers. Two gallons will last at least 100gals of fuel so I would fill at every tank fill and see what it takes. My 225 had a 2.5gal tank and I used about 70-80:1 ratio per tank, not the 50:1 I quoted you on yours. 24 Whalers so far....
Manasota	#5  Posted on 04/15/20 - 2:09 PM
Member Posts: 22 Comments: 0 Joined: 04/01/20	I don't usually fill the gas tank (92 gallon tank according to BW) but the mechanic at my local marina suggested a 12-1 gas/oil ratio so for every 48 gallons of gas I should think 1 gallon of oil. I will continue to monitor that.
Joe Kriz	#6  Posted on 04/15/20 - 5:07 PM
Site Owner Personal Page Personal Album Photo Albums Project Albums Posts: 11447 Comments: 452 Joined: 03/18/05	The standard ratio of 50:1 is measured in Gallons. 50 Gallons of Fuel 1 Gallon of Oil I am assuming you were talking quarts but you Need to mention that in your statement. 12 Quarts of Fuel to 1 Quart of Oil = 48:1 ratio Otherwise most people would be confused at your statement. 12 Gallons of Fuel to 1 Gallon of Oil = 12:1 ratio and that would be way too much oil and likely smoke and foul the plugs. OR, 200 Quarts of Fuel to 4 Quarts of Oil = 50:1 ratio OR, 100 Quarts of Fuel to 2 Quarts of Oil = 50:1 ratio OR, 50 Quarts of Fuel to 1 Quart of Oil = 50:1 ratio We can also break that down to pints if anyone is interested but we need to mention that in the statement. Gallons, Quarts, Pints, etc.
biggiefl	#7  Posted on 04/16/20 - 7:34 AM
Member Posts: 890 Comments: 4 Joined: 05/08/06	Hopefully your oil injection does a better job that 48:1 mix. They usually range from 50:1-150:1 depending on amount of throttle. 24 Whalers so far....
Joe Kriz	#8  Posted on 04/16/20 - 12:24 PM
Site Owner Personal Page Personal Album Photo Albums Project Albums Posts: 11447 Comments: 452 Joined: 03/18/05	Yeah, I misread the question a little. VRO does use less Oil at higher speeds. Variable Ratio Oil system Still trying to figure out exactly what his mechanic suggested of "12-1 gas/oil ratio"
biggiefl	#9  Posted on 04/17/20 - 9:16 AM
Member Posts: 890 Comments: 4 Joined: 05/08/06	You are correct Joe. If you read it again it says 48gals is 1 gal of oil. 24 Whalers so far....