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Author Topic:   E-TEC: Switch to XD100 Oil from XD50

DMorgan posted 07-20-2009 08:34 PM ET (US)
Hello All. First time to the forums, but I've been trolling them for the past few years whenever I have a Whaler related question. I have a '68, which I believe is a Nauset, though by the time I got it five years ago everything had been striped out of the boat and replaced with a small fiberglass console and a cloth rub rail. The boat was a yacht club tender and had seen a bit of abuse. I've since added a few odds and ends, but there is little hope that I'll be able to add back the teak console and seats. Those odds and ends include the an Evinrude 75-HP E-TEC which I picked up used with around 150 hours on it. It runs great, though the top end isn't too much faster then the old mid-80's Evinrude 70 I had bought it with; which killed itself.
I was told by the seller, a small boats mechanic for the Marines, that the I should switch over to XD100 oil when I get the chance from the XD50 it is presently running. I've got the oil, the CD and the cable hook-up (reportedly the diagnositc set up for the motor) for my laptop, but before I got into the project, I wanted to see if anyone had experience with the procedure. Basically I wanted to know if I have to drain all of the old oil first and if so, is there an easy way to do so - such as a return line or sender unit from the bottom of the oil tank I can get to?
My other thinking was to just wait until it got low on the XD50, then add the XD100. My thought being that if I run it at the CD50 setting for a small bit of time with the XD100, it shouldn't hurt it as it will actually be running rich. Then, as soon as I think the remanents of the XD50 are out, switch the computer over to the XD100 setting?
I'd like to just drain it then refil, if it is possible without too much trouble. Anyone have experience with this one?
Thanks,
- Dave

jimh posted 07-21-2009 08:23 AM ET (US)
I recommend you install the diagnostic software on the laptop and connect to the engine. My experience is the software has two states: registered and unregistered. In the unregistered state you can see many parameters, but you cannot save any changes. This may affect your ability to change the oil rate to XD100 from the XD50 setting. Verify you can do this.
If you indeed can change the oil rate, the next consideration is the oil in the reservoir. If you are in a rush, draw out the XD50 from the reservoir and replace it with XD100. However, you should consider the possibility of getting air into the oil lines. You may want to only withdraw the XD50 until you reach the pick-up. Then re-fill with XD100. If there is any sign of air in the lines, there is a procedure to run the oil pump at a very high rate for a brief period to help purge air.
If you make a mixture of XD100 and XD50, the proportions determine the blend. Let's say you leave 1/4 of the reservoir filled with XD50 and add XD100. The new mixture will be 75-percent concentration of XD100. If you repeat this after running the level down to 1/4-FULL, the next solution will be
MIX = 0.75 (XD100) + 0.25[ 0.75(XD100) + 0.25(XD50)]
MIX = 0.9375 (XD100) + 0.0625 (XD50)
or a 93.7-percent concentration of XD100
If you repeat a third re-fill the solution will be
MIX = 0.75 (XD100) + 0.25 [ 0.9275 (XD100) + 0.0625 (XD50) ]
MIX = 0.9819 (XD100) + 0.0156 (XD50)
Thus after running two tanks of the mix you will be at 98-percent XD100 concentration on the third tank.
If you can draw the XD50 down even further, say to 1/5-FULL, the concentration will increase faster.
Peter posted 07-21-2009 08:57 AM ET (US)
On a 75 HP motor, I would not bother switching the oiling rate from TCW3 to XD100. Even in the TCW3 setting, the direct fuel injected motors use so little oil that there is very little financial advantage, particularly when you have to use the more expensive XD100 oil in the XD100 setting.
According to Evinrude's data, an E-TEC 75 run in the ICOMIA duty cycle will burn approximately 1.75 GPH. If it applies oil at an an average 50:1 ratio (probably higher than this) in the TCW3 mode, it will take approximately 28.5 hours of operation before a gallon of oil is consumed.
DMorgan posted 07-21-2009 10:59 AM ET (US)
Thanks to both of you for your replies.
I've already got two gallons of the XD 100, so it would seem that it is a good idea to switch over, though I'm sure going to a delaer and trading in for to gallons of CD 50 - my loss, would be the easiest solution.
I appriciate the heads up on the software issue and because the boat is about an hour away from me I've drug my feet loading the software and playing with the motor, I'll head through this pocesses over the weekend and figure out where I stand.
jimh - you mentioned air in the lines, which was the only error code mentioned when I had the motor installed. The shop indicated that it could have been a number of issues but indicated that it wasnt throwing codes any longer and seemed fine. I guess we'll see.
I appriciate the suggestions, thank all.
Peter posted 07-21-2009 11:16 AM ET (US)
You can use the XD100 grade oil in an E-TEC set for TCW3. You cannot use anything but XD100 grade oil if the motor is set for XD100.
So, just use the XD100 as you would XD50. There are some benefits to the use of XD100 even if the oiling rate is set at the TCW3 setting.
Buckda posted 07-21-2009 11:45 AM ET (US)
I agree with JimH - run a few tanks of XD-100 and then have the setting changed over.
The motor is very stingy with the XD-100.
Tohsgib posted 07-21-2009 12:15 PM ET (US)
If I was burning less than 2 gallons per season or so, I would leave it at the XD50 setting and just run xd100 in it.
acseatsri posted 07-21-2009 05:16 PM ET (US)
For the little oil you'll use during the season, I'd just use the XD100 oil on the XD50 setting. It will probably give you better longevity over the life of the engine.
DMorgan posted 07-22-2009 06:26 PM ET (US)
Thanks again everyone,
Has anyone actually just started using the XD100 with the XD50 setting in place, or is this just hypothetical?
jimh posted 07-23-2009 09:43 AM ET (US)
[A new topic was introduced into this discussion. The new topic has been separated and is now its own thread.]
Menemsha69 posted 07-24-2009 06:33 AM ET (US)
DMorgan- My 2008 90 horsepower E-TEC is set for XD50. About a week ago I bought oil from the dealer and asked for XD100. I realized my mistake when I got home and noticed it was a different color. I called my dealer/mechanic, and he said it was no big deal. The motor will not be harmed in any way. Going out for a ride today, and will let you know if anything unusual happens. -k
Peter posted 07-24-2009 06:51 AM ET (US)
XD100 is a better grade of oil than XD50. Putting that in the oil tank of an E-TEC set for TCW3 is like putting premium unleaded in the fuel tank of a car that only needs regular unleaded. Won't harm anything and you may see some benefits.
1984Outrage25 posted 07-24-2009 10:04 PM ET (US)
I just had my Etec switched to burn XD50 rate but I am burning XD100. I had a water in fuel problem which reached engine and the dealer recommended the switch just to give it some extra lubrication in case water or salt was in engine.
Performance is same but I can definately see that I am burning more oil and can see/ smell exhaust for first time.
Burn through your XD50 till you know that you only have XD100 in resevoir. Then switch burn rate to XD100 it's worth it.
Menemsha69 posted 07-25-2009 06:51 AM ET (US)
DMorgan- Yesterday I took the boat out for a run up the lake with a couple of friends. Ran about 20 miles roundtrip, without incident, she ran like a top! Don't sweat the oil settings, I didn't notice a difference in performance or emissions! I think your okay with your settings as they are.-k
jimh posted 08-06-2009 10:50 PM ET (US)
To optimize the switch to XD100 oil from XD50, use this procedure.
Run the motor until the LOW OIL alarm comes on. The level in the reservoir should be about 1/4-FULL, or about 0.5-gallon in the 1.8-gallon tank. This will be all XD50 oil.
Add XD100 oil to the reservoir until you raise the level to about 1/2-FULL. The oil mixture will now be 50:50 XD100 and XD50.
Run the motor until the LOW OIL alarm comes on again. Refill the reservoir with XD100 to the 1/2-FULL mark. The mixture will now be 75:25 XD100 and XD50.
Repeat the above. Refill. The mixture is now 87.5:12.5 XD100 and XD50.
Repeat a fourth time. The mixture is now 93.75:0.625 XD100 and XD50.
You have raised the concentration of XD100 to 93.75-percent and only had to pour in two gallons. You can now switch the oil setting to the XD100 rate if you wish.
You can further optimize the change over if in the first step you withdraw as much XD50 from the reservoir as possible when the engine is not running using a turkey baster but being very careful not to uncover the pick-up hose and fitting. This will increase the initial concentration of XD100.

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Author	Topic: E-TEC: Switch to XD100 Oil from XD50
DMorgan	posted 07-20-2009 08:34 PM ET (US) Hello All. First time to the forums, but I've been trolling them for the past few years whenever I have a Whaler related question. I have a '68, which I believe is a Nauset, though by the time I got it five years ago everything had been striped out of the boat and replaced with a small fiberglass console and a cloth rub rail. The boat was a yacht club tender and had seen a bit of abuse. I've since added a few odds and ends, but there is little hope that I'll be able to add back the teak console and seats. Those odds and ends include the an Evinrude 75-HP E-TEC which I picked up used with around 150 hours on it. It runs great, though the top end isn't too much faster then the old mid-80's Evinrude 70 I had bought it with; which killed itself. I was told by the seller, a small boats mechanic for the Marines, that the I should switch over to XD100 oil when I get the chance from the XD50 it is presently running. I've got the oil, the CD and the cable hook-up (reportedly the diagnositc set up for the motor) for my laptop, but before I got into the project, I wanted to see if anyone had experience with the procedure. Basically I wanted to know if I have to drain all of the old oil first and if so, is there an easy way to do so - such as a return line or sender unit from the bottom of the oil tank I can get to? My other thinking was to just wait until it got low on the XD50, then add the XD100. My thought being that if I run it at the CD50 setting for a small bit of time with the XD100, it shouldn't hurt it as it will actually be running rich. Then, as soon as I think the remanents of the XD50 are out, switch the computer over to the XD100 setting? I'd like to just drain it then refil, if it is possible without too much trouble. Anyone have experience with this one? Thanks, - Dave
jimh	posted 07-21-2009 08:23 AM ET (US) I recommend you install the diagnostic software on the laptop and connect to the engine. My experience is the software has two states: registered and unregistered. In the unregistered state you can see many parameters, but you cannot save any changes. This may affect your ability to change the oil rate to XD100 from the XD50 setting. Verify you can do this. If you indeed can change the oil rate, the next consideration is the oil in the reservoir. If you are in a rush, draw out the XD50 from the reservoir and replace it with XD100. However, you should consider the possibility of getting air into the oil lines. You may want to only withdraw the XD50 until you reach the pick-up. Then re-fill with XD100. If there is any sign of air in the lines, there is a procedure to run the oil pump at a very high rate for a brief period to help purge air. If you make a mixture of XD100 and XD50, the proportions determine the blend. Let's say you leave 1/4 of the reservoir filled with XD50 and add XD100. The new mixture will be 75-percent concentration of XD100. If you repeat this after running the level down to 1/4-FULL, the next solution will be MIX = 0.75 (XD100) + 0.25[ 0.75(XD100) + 0.25(XD50)] MIX = 0.9375 (XD100) + 0.0625 (XD50) or a 93.7-percent concentration of XD100 If you repeat a third re-fill the solution will be MIX = 0.75 (XD100) + 0.25 [ 0.9275 (XD100) + 0.0625 (XD50) ] MIX = 0.9819 (XD100) + 0.0156 (XD50) Thus after running two tanks of the mix you will be at 98-percent XD100 concentration on the third tank. If you can draw the XD50 down even further, say to 1/5-FULL, the concentration will increase faster.
Peter	posted 07-21-2009 08:57 AM ET (US) On a 75 HP motor, I would not bother switching the oiling rate from TCW3 to XD100. Even in the TCW3 setting, the direct fuel injected motors use so little oil that there is very little financial advantage, particularly when you have to use the more expensive XD100 oil in the XD100 setting. According to Evinrude's data, an E-TEC 75 run in the ICOMIA duty cycle will burn approximately 1.75 GPH. If it applies oil at an an average 50:1 ratio (probably higher than this) in the TCW3 mode, it will take approximately 28.5 hours of operation before a gallon of oil is consumed.
DMorgan	posted 07-21-2009 10:59 AM ET (US) Thanks to both of you for your replies. I've already got two gallons of the XD 100, so it would seem that it is a good idea to switch over, though I'm sure going to a delaer and trading in for to gallons of CD 50 - my loss, would be the easiest solution. I appriciate the heads up on the software issue and because the boat is about an hour away from me I've drug my feet loading the software and playing with the motor, I'll head through this pocesses over the weekend and figure out where I stand. jimh - you mentioned air in the lines, which was the only error code mentioned when I had the motor installed. The shop indicated that it could have been a number of issues but indicated that it wasnt throwing codes any longer and seemed fine. I guess we'll see. I appriciate the suggestions, thank all.
Peter	posted 07-21-2009 11:16 AM ET (US) You can use the XD100 grade oil in an E-TEC set for TCW3. You cannot use anything but XD100 grade oil if the motor is set for XD100. So, just use the XD100 as you would XD50. There are some benefits to the use of XD100 even if the oiling rate is set at the TCW3 setting.
Buckda	posted 07-21-2009 11:45 AM ET (US) I agree with JimH - run a few tanks of XD-100 and then have the setting changed over. The motor is very stingy with the XD-100.
Tohsgib	posted 07-21-2009 12:15 PM ET (US) If I was burning less than 2 gallons per season or so, I would leave it at the XD50 setting and just run xd100 in it.
acseatsri	posted 07-21-2009 05:16 PM ET (US) For the little oil you'll use during the season, I'd just use the XD100 oil on the XD50 setting. It will probably give you better longevity over the life of the engine.
DMorgan	posted 07-22-2009 06:26 PM ET (US) Thanks again everyone, Has anyone actually just started using the XD100 with the XD50 setting in place, or is this just hypothetical?
jimh	posted 07-23-2009 09:43 AM ET (US) [A new topic was introduced into this discussion. The new topic has been separated and is now its own thread.]
Menemsha69	posted 07-24-2009 06:33 AM ET (US) DMorgan- My 2008 90 horsepower E-TEC is set for XD50. About a week ago I bought oil from the dealer and asked for XD100. I realized my mistake when I got home and noticed it was a different color. I called my dealer/mechanic, and he said it was no big deal. The motor will not be harmed in any way. Going out for a ride today, and will let you know if anything unusual happens. -k
Peter	posted 07-24-2009 06:51 AM ET (US) XD100 is a better grade of oil than XD50. Putting that in the oil tank of an E-TEC set for TCW3 is like putting premium unleaded in the fuel tank of a car that only needs regular unleaded. Won't harm anything and you may see some benefits.
1984Outrage25	posted 07-24-2009 10:04 PM ET (US) I just had my Etec switched to burn XD50 rate but I am burning XD100. I had a water in fuel problem which reached engine and the dealer recommended the switch just to give it some extra lubrication in case water or salt was in engine. Performance is same but I can definately see that I am burning more oil and can see/ smell exhaust for first time. Burn through your XD50 till you know that you only have XD100 in resevoir. Then switch burn rate to XD100 it's worth it.
Menemsha69	posted 07-25-2009 06:51 AM ET (US) DMorgan- Yesterday I took the boat out for a run up the lake with a couple of friends. Ran about 20 miles roundtrip, without incident, she ran like a top! Don't sweat the oil settings, I didn't notice a difference in performance or emissions! I think your okay with your settings as they are.-k
jimh	posted 08-06-2009 10:50 PM ET (US) To optimize the switch to XD100 oil from XD50, use this procedure. Run the motor until the LOW OIL alarm comes on. The level in the reservoir should be about 1/4-FULL, or about 0.5-gallon in the 1.8-gallon tank. This will be all XD50 oil. Add XD100 oil to the reservoir until you raise the level to about 1/2-FULL. The oil mixture will now be 50:50 XD100 and XD50. Run the motor until the LOW OIL alarm comes on again. Refill the reservoir with XD100 to the 1/2-FULL mark. The mixture will now be 75:25 XD100 and XD50. Repeat the above. Refill. The mixture is now 87.5:12.5 XD100 and XD50. Repeat a fourth time. The mixture is now 93.75:0.625 XD100 and XD50. You have raised the concentration of XD100 to 93.75-percent and only had to pour in two gallons. You can now switch the oil setting to the XD100 rate if you wish. You can further optimize the change over if in the first step you withdraw as much XD50 from the reservoir as possible when the engine is not running using a turkey baster but being very careful not to uncover the pick-up hose and fitting. This will increase the initial concentration of XD100.