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Trash4071

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Help please , idle and slow speeds I average 140-145 temp, once I open it up above 3500 rpms it drops to 100 -105 , not a big deal in the small lake I run in most the time , but when I go to Canada lotw and travel 30-35 miles it really goes thru the oil , I use the xd100 , water pump changed , thermostats changed , plugs changed same issue , what’s left to check , thanks for the help , it’s been doing this the last 3 years ,
Thanks again ,
alana

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Reply with quote  #2 
And the engine and modle numbers are?
Trash4071

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2008 e tech 225 ,
Trash4071

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Boat is not with me right now to get model number
Sorrz
jimh

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I have a 2010 E-TEC 225. At engine speeds below 1,500-RPM the engine temperature will be regulated by the thermostats. The thermostats limit engine temperature to 185-degree-F.

At higher throttle the pressure relief valve opens and much greater cooling occurs. The engine temperature will decrease to 100 to 120-degrees-F. This behavior is normal.

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Trash4071

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Do you notice a lot of oil use at that temp ? I was told it should not run that cool , that’s why it’s calling for more oil , maybe I was told wrong by a few , it runs great I was just told that is to low for the engine and that’s why the oil usage ,
jimh

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My 2010 E-TEC engine EMM is set for TCW3 oil rate. My estimate of oil use is roughly in a ratio of 1:60 oil-to-gasoline. I have no data that gives oil use ratio as a function of engine temperature.

Q: how were you able to calculate the oil use ratio at different engine temperatures?

Please share your measurement methods and data.

Perhaps the reason your engine uses more oil on bigger water is because the engine runs at higher throttle for longer periods, and that running at a lower temperature may have nothing to do with oil use ratio.

But I look forward to seeing your measured data that shows a correlation of oil use at high-throttle as a function of engine temperature.

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Trash4071

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Is that one gallon of oil for every 60 gallons of fuel ?
Thank u
For you for your help
olypopper

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Reply with quote  #9 
More importantly, what is your wide open rpm? FYI it sounds like you have a leak around the thermostats or pressure relief valve. Your engine temp should be a bit higher.
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Trash4071

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Iam thinking 5500-5800 does that sound ok
Trash4071

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It’s a 619 vs ranger it runs 53-55 mph
It runs good
olypopper

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Quote:
Originally Posted by Trash4071
Iam thinking 5500-5800 does that sound ok


If that is accurate, yes. Sounds good.

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Trash4071

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So probably have them check for them two leaks u mentioned ? Is that a quick check do u know ?
olypopper

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Quote:
Originally Posted by Trash4071
So probably have them check for them two leaks u mentioned ? Is that a quick check do u know ?


A skilled tech can easily sort this out. I have no idea how skilled your mechanic is.

They can use pinch off pliers on the prv hoses.

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jimh

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Quote:
Originally Posted by Trash4071
Is that one gallon of oil for every 60 gallons of fuel ?


The ratio has no volumetric dimensions. It is a scalar, a ratio of 1:60.

It can be one ounce to 60-ounces, or one liter to 60-liters, or as you propose, one gallon to 60-gallons. There are no units in the 1:60 ratio.

Again, how did you measure your data about oil rate as a function of temperature?

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