glock-coma Posted April 23, 2013 Report Share Posted April 23, 2013 I changed my PTU fluid this past weekend. 26,000 miles, It looked pretty bad. Replaced it with redline 75-w140. Here's some pics. I accessed the fill plug through the passenger side wheel well. [ATTACH=CONFIG]2381[/ATTACH] [ATTACH=CONFIG]2375[/ATTACH] I used an impact driver with some 3/8" extension bars connected together To remove/install the plug [ATTACH=CONFIG]2376[/ATTACH] PTU fluid at 26,000 miles. I was only able to remove about 13oz via oil extractor. The cover plate must be pretty close to the gears. There was very little room to maneuver the siphon hose. [ATTACH=CONFIG]2377[/ATTACH] When I do this again, I'll do it from underneath the car. Seems to be enough access. You can see the plug with the red thread sealant. [ATTACH=CONFIG]2378[/ATTACH] Here's a pic of the PTU part number. [ATTACH=CONFIG]2383[/ATTACH] SHOdded and mjhpadi 2 Quote Link to comment Share on other sites More sharing options...
glock-coma Posted April 23, 2013 Author Report Share Posted April 23, 2013 Not sure what's going on with the upside thumbnails. Mods please delete thumbnails. Edit: figured out how to edit thumbnail attachment Quote Link to comment Share on other sites More sharing options...
interceptor Posted April 24, 2013 Report Share Posted April 24, 2013 What does Ford recommend for a change interval? 100k? Hard to believe if it looks that bad after 26k. Quote Link to comment Share on other sites More sharing options...
glock-coma Posted April 24, 2013 Author Report Share Posted April 24, 2013 What does Ford recommend for a change interval? 100k? Hard to believe if it looks that bad after 26k. According to ford it's a "lifetime fluid". I would guess that means factory warranty + 1 mile. The fords repair manual it says it only needs to be changed if contaminated. Quote Link to comment Share on other sites More sharing options...
interceptor Posted April 24, 2013 Report Share Posted April 24, 2013 Thanks for the write up and photos. I'll be looking this up in about 25000 miles. Quote Link to comment Share on other sites More sharing options...
griggs95 Posted April 24, 2013 Report Share Posted April 24, 2013 Great right up and pictures! I find myself fascinated by the PTU fluid ever since I learned of the darn thing. I'm very very curious now that people are changing the fluid in it that the next time the fluid is changed, it will be cleaner and less viscous than the first fluid change. Could it just be the quality of the fluid Ford is using? This also depends, I think on the quality of fluid people will use and how it holds up for another 25k-50k, whichever people choose to change it. Quote Link to comment Share on other sites More sharing options...
SHOdded Posted April 24, 2013 Report Share Posted April 24, 2013 To follow up on griggs idea, maybe the factory PTU fluid is showing need for a breakin period, same as engine oil? Quote Link to comment Share on other sites More sharing options...
EcoBoostSHO Posted April 24, 2013 Report Share Posted April 24, 2013 Just hope it isn't like my motorcycle rear end (shaft drive) where you add Moly Paste to the fluid (which makes it ridiculously dark and ugly) but helps immensely with the pressure on the gears. If we are washing it out that wouldn't be good obviously. Does the service manual say anything about changing the fluid in the PTU at all? I still plan on changing mine anyway... Quote Link to comment Share on other sites More sharing options...
Boggus Posted April 25, 2013 Report Share Posted April 25, 2013 Someone needs to change the PTU fluid on a brand new car just to get a shot of what the new fluid looks like. Quote Link to comment Share on other sites More sharing options...
sweetair Posted April 25, 2013 Report Share Posted April 25, 2013 This is a good idea right here. Is the new fluid clean looking like motor oil? I would think it is quite a bit "thicker" than motor oil. Someone needs to change the PTU fluid on a brand new car just to get a shot of what the new fluid looks like. Quote Link to comment Share on other sites More sharing options...
griggs95 Posted April 26, 2013 Report Share Posted April 26, 2013 Just hope it isn't like my motorcycle rear end (shaft drive) where you add Moly Paste to the fluid (which makes it ridiculously dark and ugly) but helps immensely with the pressure on the gears. If we are washing it out that wouldn't be good obviously. Does the service manual say anything about changing the fluid in the PTU at all? I still plan on changing mine anyway... This is an interesting idea you have and quite possibly why Ford is so against any fluid changes. I may be premature about my response until I look at exactly what Ford recommends for fluid in the PTU (as far as an additive in concerned). Quote Link to comment Share on other sites More sharing options...
Night Hawk Posted April 26, 2013 Report Share Posted April 26, 2013 lifetime fluid lol Quote Link to comment Share on other sites More sharing options...
glock-coma Posted April 26, 2013 Author Report Share Posted April 26, 2013 I found this over @fordflex.net "By the way fresh Motorcraft synthetic 75W-140 fluid is clear and it pours easily even when cold." http://www.fordflex.net/forums/viewtopic.php?f=7&t=9334 Quote Link to comment Share on other sites More sharing options...
mjhpadi Posted April 27, 2013 Report Share Posted April 27, 2013 I just heard that Motorcraft Synthetic fluid is one of the best synthetics available. Since I know very little about the various synthetics, maybe someone could enlighten us on them. I was planning on changing to Royal Purple but if Motorcraft is as good as I've just heard I would conider using it in the differential and PTU. Quote Link to comment Share on other sites More sharing options...
glock-coma Posted April 27, 2013 Author Report Share Posted April 27, 2013 Here's the product data sheet. It's $31.76 per quart from amazon.......it better be good mjhpadi 1 Quote Link to comment Share on other sites More sharing options...
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