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89 votes
Accepted

Can salt water be used in place of antifreeze?

Uh ... absolutely not. Salt water will cause corrosion with in the engine block. Salt water is an electrolyte, so will pass electricity which will cause electrolysis. Also, it might be able to handle ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
35 votes

Do mobile air conditioners exist for cars?

Can't believe no one has posted this yet, but: Source: https://geekologie.com/2019/07/meanwhile-in-florida-a-car-with-a-window.php
MonkeyZeus's user avatar
  • 1,187
29 votes

Do mobile air conditioners exist for cars?

Practically no. An air conditioner is a heat pump: it takes heat from one location and pumps it to another location where it can be radiated. This takes a fair amount of power: a 12 volt auxiliary ...
GdD's user avatar
  • 17k
29 votes

Can salt water be used in place of antifreeze?

Terrible idea. The salt will precipitate and block the radiator fins Of course you know you can dissolve things like salt into water. You probably also know there's a limit to how much it can hold - ...
Harper - Reinstate Monica's user avatar
24 votes
Accepted

Is it Safe to Drive With Low Engine Coolant?

"Is it safe to continue driving with low coolant as long as I continue to watch the temperature gauge? " No, the temp sensor reads coolant temperature, if the coolant gets low enough to be below the ...
Moab's user avatar
  • 7,990
23 votes

Do mobile air conditioners exist for cars?

Back in the 1940's and 1950's there used to be a product called a "Swamp Cooler". This was effectively an evaporative cooler that you sandwiched into your partially open car window. As you drove, ...
Steve Matthews's user avatar
16 votes

Why does my 2006 Chevy Equinox have no heat when all repairs for the heat has been made?

It sounds like the approach to solving your problem so far hasn't been very systematic or "evidence based" – at least the list of parts replaces suggests that the people working on it have been using ...
dlu's user avatar
  • 14.5k
15 votes

Do mobile air conditioners exist for cars?

The air conditioner in a car draws several kW of power. A cigarette lighter socket is limited to ~150 W, which is far too little to noticeably reduce the temperature in the car. Things you can do to ...
Hobbes's user avatar
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13 votes
Accepted

50/50 Coolant Dilution after distilled water flush?

Yes what you presume is correct. Depending on total volume of coolant (different for each vehicle) how much pure AF I put in, anywhere from 1/2 to 1 gallon, then top off with 50/50 mix. It is better ...
Moab's user avatar
  • 7,990
13 votes
Accepted

How long should I wait for engine to cool down before I can check coolant?

The exact time taken depends upon various factors: The ambient temperature The amount of heat insulation in the engine bay Volume of coolant in the engine How hot the engine got while driving ...
motosubatsu's user avatar
  • 10.1k
12 votes

Is it Safe to Drive With Low Engine Coolant?

If you do not have any leaks, then your coolant is most likely getting burned and/or going into your oil. My guess is going to be a problem with your head gasket or some crack or warping in the head. ...
agent provocateur's user avatar
11 votes

Should Multiple Coolant Hose Leaks in a Short Time Worry Me?

I believe (and this is a gut check) you can chalk this up to deteriorated hoses which all have gone bad in the same period of time (coincidence). Each has probably served a long fruitful life and now ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
11 votes
Accepted

Should Multiple Coolant Hose Leaks in a Short Time Worry Me?

Remember that the reliability of any system of components will only be as strong as the weakest link. Coolant lines are pressurized under regular operation and the walls of the hoses will weaken with ...
Zaid's user avatar
  • 39.2k
11 votes

50/50 Coolant Dilution after distilled water flush?

The coolant capacity of the 2004 TOYOTA COROLLA 1.8L 4-cyl Engine Code [R] 1ZZ-FE is 6.9 quarts. To accurately ensure you have a 50/50 mix in your system after a flush (assuming you actually flush it ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
11 votes

Do mobile air conditioners exist for cars?

I have used home made ac units that consists of a cooler, fan & ice (see video). It works GREAT for a hour or so depending on how hot the day is. You could get a 12V DC fan that plugs into your ...
narkeleptk's user avatar
  • 3,780
10 votes

Is it Safe to Drive With Low Engine Coolant?

First, you do need to find out where the coolant is going. There is UV dye that can help with this, and if your car is smoking, that could be a sign that the coolant is leaking into the engine rather ...
JPhi1618's user avatar
  • 13.2k
10 votes

Oil Cooled vs Water Cooled

I am assuming that by cooling you are referring as to which Engine cooling systems are better in particular scenarios... Oil-cooled: Traditional Oil-cooled engines are most commonly found in passenger ...
Jay Vyas's user avatar
  • 101
10 votes

Should you change a thermostat when changing your water pump

You don't need to, but since your coolant system is already drained, it would be a good time to. Standard thermostats are only about $10 and a $2 gasket. Changing your thermostat is typically 2 ...
rpmerf's user avatar
  • 8,403
10 votes
Accepted

Rusty coloured coolant?

From your description it doesn't seem like oil. As for why it continues to look brown, you probably haven't flushed it enough times. When I had an oil-in-coolant condition on one of my vehicles, it ...
Zaid's user avatar
  • 39.2k
9 votes
Accepted

Why does my overheating car cool off on declines?

You may have developed an air bubble in the system, probably from the reservoir falling off, or from the mechanics not bleeding the cooling system after emptying it. There'll be a pocket of air in the ...
Aaron Lavers's user avatar
  • 1,596
9 votes

Is it Safe to Drive With Low Engine Coolant?

Its not good to run with low coolant, even worse to run with no coolant. Actually it can be quite disastrous (possibilities include blown head gaskets, seized pistons and a number of expensive ...
technosaurus's user avatar
9 votes
Accepted

Evans Waterless Coolant

Hmmm, about the benefits/drawbacks, I first wanted to complain that this stuff only has a heat capacity of 2.6J/(g * K), while water has 4.2J/(g * K). Water has an exceptionally high value, which ...
sweber's user avatar
  • 7,057
8 votes
Accepted

Oil Cooled vs Water Cooled

Oil Cooled and Water Cooled are terms used by Manufacturer's to differentiate the slight difference between the cooling systems. Note that this is specific to only motorcycles as almost all of the ...
Shobin P's user avatar
  • 8,936
8 votes

Should I get 2nd Opinion on head gasket issue?

It is ALWAYS good to get a second opinion. I would highly recommend taking it to another shop and have them tell you what they think it is even if you believe the first shop to be right. That being ...
Dalton D's user avatar
  • 1,958
8 votes

Will driving car without coolant cap do long term damage to car?

If you didn't overheat the car, then you've done no damage. The radiator cap seals the system and allows pressure to build (to a point), which raises the boiling point of the coolant. This allows it ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
7 votes

Is it Safe to Drive With Low Engine Coolant?

If you can't see any obvious signs of leaks, or steam coming from anywhere if you run the engine, a likely cause is a cracked cylinder head gasket, which is letting the coolant into the cylinders and ...
alephzero's user avatar
  • 2,954
7 votes
Accepted

What is the safe limit for engine coolant temperature?

Far enough below the coolant's boiling point that you don't need to worry about what happens when you shut the engine down (and you loose coolant flow, but still have a lot of residual heat). The ...
dlu's user avatar
  • 14.5k
7 votes
Accepted

Overheating at idle - mechanic says head gasket

It would be good to ask the mechanic to explain to you how they are sure that it is the head gasket – head gasket problems often share symptoms with other problems. One way that a head gasket failure ...
dlu's user avatar
  • 14.5k
7 votes

what in the thermostat opens when it reaches a certain temperature?

The spring remains largely the same. There is a capsule of thermoreactive "wax" which heats up and expands, acting against the "closed" spring pressure, and causing the "valve" section to lift ...
SteveRacer's user avatar
  • 12.4k
7 votes

Overheats only when running at low RPM

This sounds like a problem with the radiator fan control system to me, the radiator fan should turn on automatically when the temperature reaches a certain temperature, and switch off when below. We ...
GdD's user avatar
  • 17k

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