Reply to thread

See what others are reading now! Try Forums > Current Activity

Message: <blockquote data-quote="13btt" data-source="post: 985879" data-attributes="member: 3125">My understanding of coolant as follows: The coolant (green or red stuff) contains ethylene glycol which is primary used to raise the boiling point of water above 100 degree celsius and also to stop the water & coolant mixture from freezing in sub 0 temps (not needed as we always stinking hot in KL!). In addition to this it helps to lubricate the water pumps seals (very important) and prevent corrosion of aluminium & iron engine internals - you'll notice it is a little oily. However, ethylene glycol (coolant) also reduces the heat absorption of water and thus reduces its ability to transfer heat from the engine to the radiator therefore the more coolant you have the less heat transfer too = higher water & engine temps. The water wetter is to reduce localised boiling by reducing bubbles in the water and in turn increases water to metal contact for better heat transfer. Air you should remember from chemistry/physics is a very good insulator (i.e. doesn't conduct heat very well). Hence, if you put the above understanding into practice you should keep coolant mixture low ie less than 30% IMO for optimal effect i.e. good heat transfer of water and slight increase in boiling point of water. Also as far as radiator caps go they are designed to raise the pressure of the cooling system as a higher pressure equals higher boiling point of water too. BUT too high a pressure (i.e. 1,3bar) stresses the o-rings in your engine leading to premature failure = full rebuild required. Hence IMO use 0.9bar to be safe or max 1.1bar if you need a little higher boiling point of the water. I trust the above explains the whole thingee and removes any confusion?!?!</blockquote>

Verification

The Marketplace Latest

BRAND NEW original rare Yokohama ADVAN Racing RG4...
- Started by david tao
- Chassis and Wheels
original rare Yokohama ADVAN Racing RZ2 RZii...
- Started by david tao
- Chassis and Wheels
original rare Yokohama ADVAN Racing RG 16x7jj...
- Started by david tao
- Chassis and Wheels
original rare Yokohama ADVAN Racing RG 16x7jj...
- Started by david tao
- Chassis and Wheels
original rare Rays Volk Racing TE37SL 18x9jj offset...
- Started by david tao
- Chassis and Wheels
Spoon Sw388 18x10J+40 5H120 Rim Rims Civic FL5 Type R
- Started by aycy
- Chassis and Wheels
Spoon Crane Neck Wing Carbon Spoiler GT Wing Honda...
- Started by aycy
- Exterior and Body
Honda Jazz/Fit GK Mugen body kit
- Started by jeff6126
- Exterior and Body
original TWS Taneisya P1 racing 17x8.5jj offset +28...
- Started by david tao
- Chassis and Wheels
original rare Rays Volk Racing CE28RT 18x9jj offset...
- Started by david tao
- Chassis and Wheels

Posts refresh every 5 minutes

Unveiled: Caltex Delo 400 Engine Oil - Has 80,000km Service Interval!

What is it?

The Delo 400 MGX is Caltex's high performance premium diesel engine oil. Available in SAE...

how to set car alarm remote frequency?

does anyone know how to set the frequency into a new remote of car alarm? i just changed a new battery in the remote but the memory is lost, anyone how to program it back? i'm not sure what brand is my alarm, but...

kelisa ecu wiring diagram/code

any info on this...
want to install afc by myself...
any help would be appreciate..
thank you....

Search

Enjoying Zerotohundred?

Log-in for an ad-less experience

Reply to thread

The Marketplace Latest

BRAND NEW original rare Yokohama ADVAN Racing RG4...

original rare Yokohama ADVAN Racing RZ2 RZii...

original rare Yokohama ADVAN Racing RG 16x7jj...

original rare Yokohama ADVAN Racing RG 16x7jj...

original rare Rays Volk Racing TE37SL 18x9jj offset...

Spoon Sw388 18x10J+40 5H120 Rim Rims Civic FL5 Type R

Spoon Crane Neck Wing Carbon Spoiler GT Wing Honda...

Honda Jazz/Fit GK Mugen body kit

original TWS Taneisya P1 racing 17x8.5jj offset +28...

original rare Rays Volk Racing CE28RT 18x9jj offset...

Posts refresh every 5 minutes

Recent Posts

2026 Vios HEV launched with Local Battery Assembly - UMW Toyota Motor

SPPF: The Future of Automotive Surface Protection - A Technical Overview

Upping Wira 1.5 MMC performance

Volvo Malaysia Launches Locally Assembled ES90 Electric Sedan

AMPANG mari!!ZTH member

Search

Online now

Enjoying Zerotohundred?