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@X15 , nice find on the 5.1 spec ..that's the information I was hoping for here :) @kr_bitog, I'd disagree. Water absorption clearly trends higher as you go up in DOT spec. Yes, there are variations, but in general a DOT 3 will absorb less water than a DOT 4, and a DOT 4 less than a DOT 5.1...

Car shelters with panels make a lot of sense..consider all those acres of real estate covered in paved parking spots. So your trailer waits for you at work:) The Lightyear car uses very efficient panels integrated into the roof/hood, so combined with the other efficiencies, gaining 12km of...

Ok, that's just silly :) That said, the Lightyear: https://www.motortrend.com/news/2023-lightyear-one-first-look-review/ manages to integrate 54 square feet of solar on that car (it's 16 feet long), but also takes the drag coefficient down 0.20 (crazy). The combined package claims to manage 252...

No time to reply..have to feed my horse :) Seriously though, did you read this? The OP was asking about on car solar and feasability. If this is the first model, then what will the performance be in 10 years? If you toss the solar integration, this car is taking a few approaches (integrated...

More on that Lightyear car. The company was formed by students from the same Dutch university group (Solar Team Eindhoven) that has won the Australian solar challenge a few times. Not cheap (remember the Telsa roadster? ) but it's real tech...

There are a few guys out there with older LEAFs (and degraded batteries) who just wanted to add a bit each day via on-car solar. They have managed up to 20 miles per day using pretty inefficient setups which may in fact be just fine for urban retirees! This fellow is charging auxilliary 12V...

Every 2-3 years should be just fine with DOT3. It's not just water that is the issue, it's also the corrosion package...that's why copper testing strips should be used also if you're relying on tests. Given time/cost of testing, it's not a big deal to flush fluid, particularly if the brake...

Not correct..DOT 3 absorbs water slower than DOT 4, and DOT 4 slower than DOT 5.1. Also, DOT 5.1 absorbs moisture faster than DOT 3, however retains a higher boiling point given the same moisture content...

..and don't forget the 8:1 final drive ratio with no clutch slip, or torque converter loss. These factors along with the electric motor properties contribute to that instant low end grunt "feel" you get from pretty much any EV. You'll find that the intitial squirt to 30mph on the street, (even...

We live in the worst of the salt belt with salt/sand literlaly sand blasting the chassis 5-6 months a year. I also keep vehicles a long time. I recently sold an 1984 Scirocco and 1990 VW Westfalia. Both were driven in winter and both were in excellent shape. The key is the right product...

x2 on Noxudol. Noxudol 300 for chassis and 700 for cavities. It’s the same product Toyota, Isuzu, etc. have used for corrosion related recalls and mitigation. Stays soft, does not wash off and contains active chemicals to stop corrosion. Noxudol 700 (for body cavities) has excellent creep...

I've only run into once (going back about 20 years) and only on that autocross car. That said, it was four hard consecutive stops, going downhill on the street. Autocross itself, never had an issue. That car (84 Scirocco) also got quite a few upgrades over the years, including rear discs etc. to...

It does not absorb water, meaning any H2O in the system will cause corrosion/mechanical issues. Water in the system would vapourize and cause the vapour lock issues This implies that you need to flush it often, but race folks would do this anyway. You get higher boiling points, with this caveat...

There was a time that I thought brake fluid's (mainstream, not racing) hygroscopic nature was a liability, not realising that this was part of the design spec to prevent internal system corrosion. If you're using products like the SRF, you definitely need to be well aware of the limitations that...

That 372LB DOW fluid (AC Delco DOT 3 Brake and Clutch Fluid) outperformed all of the DOT 5.1 fluids at low temps which makes it a good choice if you want to stay on DOT 3, but live in a cold climate and want to get the best performance from ABS and ESP. Most EVs (maybe all) will have an...

Noted...my edit window has expired on my posts, but if there's a mod here, have at 'er :-) "The terms hygroscopic and hydroscopic may sound similar but their meanings completely differ from one another. Hygroscopic substance refers to the substance that can take and hold moisture from the...

Based on that gem, I'm going with option 1, "you for reading this" :) I, and others here in this thread, have already noted that a tester is not necessary if you're already doing a flush every 2 years. On another forum I post at (where folks are more polite) one of the guys purchased the...

Yes, I overheated the brakes on my autocross car..which was on the street at the time. Four hard stops on a long descent. It was likely older DOT 3 at the time and yes, it was likely fluid boil as the pedal went to the floor. That was resolved with a fluid flush and pad/rotor upgrade. DOT 5.1...

@BHopkins , yes the page 10 chart excludes the DOT 3 LV, however if the weighting for vapor lock is removed, it is the winning candidate. I have only encountered brake fade on the street (never had the issue autocrossing) once, and it was not fun. My interest in the study was in finding a brake...

@BHopkins , yes, 100%. I tested our other two cars (2-4 year old fluid) and both tested in that 1% or less range. My expectation is that the 5.1 fluid I'm using now will need the 2-3 year cycle due to it's higher affinity for water absorption. @JimPghPA , I posted a thread on the military...