Oil Catch Can. Yes or No?

dtech

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Questionable as to whether it will actually harm anything with the exception of fuel economy, but doubtful that there are any benefits. Even though an engine may have been originally designed many yrs back - engineers do make changes geared to improve mpgs in areas like oil pump size and capabilities, reduced oil feed passages and bearing passages, and you also have relatively small bore sizes for stuff like the CVVT cams.
I'd feel comfortable with a 5w-40 but can't see any good reason to go to a higher weight.
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Dgc333

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FWIW, the 2.3 Ecoboost in the Mustang recommends 5w-50 all the time when you order the High Performance Package (HPP) and the standard 2.3 Ecoboost recommends 5w-50 when you track the car otherwise it recommends 5w-30. Using 5w-40 is not going to be detrimental to your engine and will provide extra protection if you drive hard or tow regularly but you may see a mileage reduction.

The reason for the different viscosities has to do with the expected usage not differences in how the engine was manufactured. An engine that spends a lot of time at the upper rpm range at or near WOT requires more protection hence the recommendation for the 5w-50 oil by Ford.

All oils thin out as they get hotter. With a multi viscosity oil the 5w represents the viscosity of the oil at -25C. The second number represents the viscosity of the oil at 100C. This does not mean that a 5w-30 gets thicker at 100C, rather it only thins out to what a straight 30 weight would be at 100C. They get this multi viscosity rating by the additives used in the oil. The additive has a unique characteristic that when cold the molecules cure up into a ball and when hot they uncurl into a string. This is how the oil is prevented from thinning out more than the second number rating when hot. The down side to the wide viscosity range oils like 5w-50 is it takes more additives to get the rating and these additives break down with use resulting in a 5w-50 acting like a 5w-30 over time. If your engine needed the 50 rating for protection you would need to change the oil more often.
 

MikeyB

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Agreed to stay with what's recommended for the Ranger 2.3
My truck prior to the Ranger was a '18 Nissan Titan with a Very stout 5.6 that called for 0W20 for the new gen Titans. Prior year 5.6 (2015 and older, they skipped the 2016 model year) called for 5W30 to be used in them.
Model years 17,18 and even some 2019's had some engines go bad and there was concern that the thinner oil contributed to the engines knocking but it turned out Nissan had some bad Aluminum blocks not honed properly in the bores.
5W30 is a very stout oil IMHO and I feel comfortable using this in the 2.3
And I didn't blink an eye having to use 0W20 in the 5.6
Just my 2c
 

Dr3wDrop

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I contacted CFM about my crank case vent spitting a ton of oil and they told me to send it in and they would tighten up the internals. They had it for a week and sent it back. I’ll put another 1,000 miles on it and check the sweat band and give them an update if it helped.

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Dr3wDrop

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Has your catch can stopped the level rising on oil dipstick?
I think it has been to early to tell still.
I am impressed how much stuff the can collects though. The slimy middle layer is what really gets me...
 

Dr3wDrop

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Update on my crank breather. Put another 2k miles on since CFM modified the vent and it is still spitting a ton of oil. Installed a new sweat band today.
 

HTX1811

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I have not had the amount of oil/fuel in the catch can the last several dumps. Only 1/4 as much as the first time same miles driven same bat out of hell driver (that's me).
 

Dr3wDrop

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I reached out to CFM. They do not have the ability to make the crank case vent any more restrictive to further reduce the oil spit. Looks like I will need to invest in a box of sweat bands to change out every now and again.
 

Doc

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I reached out to CFM. They do not have the ability to make the crank case vent any more restrictive to further reduce the oil spit. Looks like I will need to invest in a box of sweat bands to change out every now and again.
Mine is 0K..just damp at last oil change …
 

Jacob

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New update. Hadn’t cleaned out the can in a few thousand miles (67k total now) the stuff I pulled out today I swear was like oil. First time it hasn’t been diluted with condensation. See attached photos:

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Dr3wDrop

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New update. Hadn’t cleaned out the can in a few thousand miles (67k total now) the stuff I pulled out today I swear was like oil. First time it hasn’t been diluted with condensation. See attached photos:

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That's what mine looked like after a few months of putting off checking it. What was strange is I dumped it in a solo cup and the next day it evaporated. I was just left with residue in the cup.
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