Windshield washer fluid
Laughing Gas
Joined: Aug 2017
Posts: 801
Likes: 197
From: Tupelo, MS
I've used the Rain-X washer fluid for years on several of my previous vehicles and LOVED it. And honestly, I would rather use Rain-X than have some ridiculous sensor telling me I'm low on fluid. My plan is to use it and if or when the sensor goes bad, that thing is getting hot wired and taken out of the equation. My expectation it that it's a simple switch and all that's needed is to permanently keep the circuit open or closed, depending on how the system works. You can do some amazing things with a wire tap. 
Lead Driver
Joined: Oct 2014
Posts: 5,940
Likes: 1,355
From: NY/Canada border
Wow I didn't realize we had this on our trucks. Was driving to work this morning and hit the spray, then it came up on the screen low washer fluid. Very nice! I've been trying to use it up as I wanted to put the Orange Rain-X in it as it helps remove bugs better than the crap Ford puts in there. But after treading this tread I'm not sure if I should. I don't want to see the warning all the time. Is this a problem or should I just add it? Thanks
If a false low fluid reading is the worst thing that happens it's not going to ruin my day because I know that the stuff seems to last forever with me.
Cross-Country
Joined: Dec 2013
Posts: 66
Likes: 0
From: New Hampshire
Low washer fluid sensors have been around since at least the mid 1990s ,,,have no idea when Ford Trucks got them.. as for fluid, I buy whatever is on sale, and usually mix in some RAINx or equivalent, such as PEAK. Also end of Winter sales usually offer up Prestone with DeIcer in it. With all these varieties, I use the mixology method, and have several gallons of mixed ready to go . Usually top up when I do my regular and routine checks under the hood, or when I use the battery tender (monthly) I try to avoid low level warning lights for any automotive fluid or lubricant if at all possible. YMMV - good luck Tom
Fleet Mechanic
Joined: Oct 2004
Posts: 1,394
Likes: 104
From: Southern KS
I've used the Rain-X washer fluid for years on several of my previous vehicles and LOVED it. And honestly, I would rather use Rain-X than have some ridiculous sensor telling me I'm low on fluid. My plan is to use it and if or when the sensor goes bad, that thing is getting hot wired and taken out of the equation. My expectation it that it's a simple switch and all that's needed is to permanently keep the circuit open or closed, depending on how the system works. You can do some amazing things with a wire tap.
Junior User
Joined: May 2017
Posts: 92
Likes: 0
From: Quebec,Canada
Hi
Question for you did you think that prestone could damage paint on the truck????
Mario
Senior User
Joined: Feb 2018
Posts: 361
Likes: 1
I personally empty the tank on my cars as soon as possible, usually either lift the blades, if I can, and/or pull the washer tubes to the nozzle and empty it out. Then fill it up with water mentioned above.
Tuned
Joined: May 2017
Posts: 467
Likes: 48
From: Mount Arlington, NJ
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Lead Driver
Joined: Oct 2014
Posts: 5,940
Likes: 1,355
From: NY/Canada border
If you are worried about the paint or finsh like a coating or wax, use distilled or RO water instead of any washer fluid.
I personally empty the tank on my cars as soon as possible, usually either lift the blades, if I can, and/or pull the washer tubes to the nozzle and empty it out. Then fill it up with water mentioned above.
I personally empty the tank on my cars as soon as possible, usually either lift the blades, if I can, and/or pull the washer tubes to the nozzle and empty it out. Then fill it up with water mentioned above.
Lead Driver
Joined: Oct 2014
Posts: 5,940
Likes: 1,355
From: NY/Canada border
Soon enough I'll be in your state for a little respite and some motorcycle riding. After the Daytona Bike Week circus has left town! 
Laughing Gas
Joined: Aug 2017
Posts: 801
Likes: 197
From: Tupelo, MS
Prestone just works and works very well. I run the deicer year around. Once you get used to having the subzero capabilities of a product like that you won't use the standard blue stuff ever again.
4th Gear
Joined: Aug 2021
Posts: 4
Likes: 0
I own a 2018 and my low level notification is coming on even though it was recently filled. I rarely use it. I’m going to try rain-x.
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