Request a catalogue

Available Catalogues

I'm interested in:
  • Motorsport
  • Motorcycle
  • Performance
  • Tools and Workshop
 

Coolant Additives

Showing 24 of 25 items
Finance avail. on baskets over £250
demontweeks_662454
 
 
From £6.29INC VATFrom £5.24EX VAT
Finance avail. on baskets over £250
demontweeks_250947
Was £4.52INC VAT
Save 18%
From £3.74INC VATFrom £3.12EX VAT
Finance avail. on baskets over £250
demontweeks_red80204
Was £16.32INC VAT
Save 9%
£14.99INC VAT£12.49EX VAT
Finance avail. on baskets over £250
demontweeks_488260
 
 
From £29.88INC VATFrom £24.90EX VAT
Finance avail. on baskets over £250
demontweeks_662452
 
 
From £8.92INC VATFrom £7.43EX VAT
Finance avail. on baskets over £250
New
demontweeks_luc10640
 
 
£14.36INC VAT£11.97EX VAT
Finance avail. on baskets over £250
demontweeks_316628
Was £4.15INC VAT
Save 11%
From £3.71INC VATFrom £3.09EX VAT
Finance avail. on baskets over £250
demontweeks_vpr2085
 
 
£13.20INC VAT£11.00EX VAT
Finance avail. on baskets over £250
demontweeks_dei040202
Was £11.48INC VAT
Save 3%
£11.21INC VAT£9.34EX VAT
Finance avail. on baskets over £250
demontweeks_662450
 
 
From £6.01INC VATFrom £5.01EX VAT
Finance avail. on baskets over £250
demontweeks_mshmmra_lc
 
 
£18.70INC VAT£15.58EX VAT
Finance avail. on baskets over £250
demontweeks_mot107798
Was £21.06INC VAT
Save 17%
£17.50INC VAT£14.58EX VAT
Finance avail. on baskets over £250
demontweeks_mol5547mc
 
 
£14.21INC VAT£11.84EX VAT
Finance avail. on baskets over £250
demontweeks_fstm785
 
 
£17.78INC VAT£14.82EX VAT
Finance avail. on baskets over £250
demontweeks_dei040208
Was £11.48INC VAT
Save 3%
£11.21INC VAT£9.34EX VAT
Finance avail. on baskets over £250
demontweeks_dei040206
Was £11.48INC VAT
Save 3%
£11.21INC VAT£9.34EX VAT
Finance avail. on baskets over £250
demontweeks_aaovr12
 
 
£13.50INC VAT£11.25EX VAT
Finance avail. on baskets over £250
demontweeks_662453
 
 
From £13.26INC VATFrom £11.05EX VAT
Finance avail. on baskets over £250
demontweeks_662451
 
 
From £11.42INC VATFrom £9.52EX VAT
Finance avail. on baskets over £250
demontweeks_662449
Was £31.52INC VAT
Save 1%
£31.51INC VAT£26.26EX VAT
Finance avail. on baskets over £250
demontweeks_534952
Was £12.79INC VAT
Save 32%
From £8.72INC VATFrom £7.27EX VAT
Finance avail. on baskets over £250
demontweeks_488343
 
 
From £15.97INC VATFrom £13.31EX VAT
Finance avail. on baskets over £250
demontweeks_488249
 
 
From £29.88INC VATFrom £24.90EX VAT
Finance avail. on baskets over £250
Showing 24 of 25 items

Additives are some of the most effective, yet frequently overlooked fluids you can put into a car. Coolant additives, in particular, are often forgotten in favour of the more widely used fuel and oil treatments, but they play a vital role in motorsport.

As a natural by-product of their operation, car engines produce a large amount of heat. In racing conditions, as you can imagine, the engine gets very hot indeed and is often at risk of overheating leaving you forced to retire from the race or back to the pits for some urgent work.

To combat this increase in heat and to maintain the perfect operating temperature, most engines feature a cooling system which pumps a special fluid around the inside of the engine and through a radiator. As regular water starts to boil at 100 degrees Celsius, either ethylene or propylene glycol is added to lower the boiling point and keep the fluid more stable. In order to keep your engine at a cool operating temperature and working how you want it to from lights out to the chequered flag, browse the full range of engine coolant additives available at Demon Tweeks today featuring additives from Red Line, Motul, Millers Oils and more top brands.