PLEASE READ ALL INSTRUCTIONS BEFORE ADDING RYDEN
Step 1 - Ensure radiator is cool before removing cap.
Step 2 - Unscrew radiator or recirculation cap. Check to ensure that the fluid is clean and if not, we highly recommend that the radiator be flushed. The reason for this flush is because Ryden will last 5 years or more, so it is necessary to start with a clean environment in your radiator. Once the radiator has been flushed, if necessary, proceed to step # 3.
Step 3 - Remove twice the amount of coolant to be replaced by Ryden. For example, when adding 100 ml of Ryden remove 200 ml of radiator fluid. Please shake bottle vigorously 50 or 60 times. Make sure that absolutely no powder is sticking to the bottom or side of the bottle. Tap bottle on hard surface to dislodge any powder if necessary. Replace fluid that was removed if needed to top up fluid level in radiator.
Step 4 - Put "Ryden" into the radiator or recirculation system. Do not put Ryden into overflow or reserve bottle.
Note: Overflow or reserve bottle may be part of the vehicles recirculation system, so please check with a mechanic if unsure of this system. Ryden will not work if not circulating in the cooling channels.
Step 5 - After installation of Ryden replace radiator cap and let your vehicle idle for at least 15 minutes. This idling is imperative to ensure that the Ryden is circulating through the cooling channels in the engine and also allows vehicles with on-board computers and sensors the time to make the necessary adjustments. Note: This idling procedure needs to be performed only upon installation.
Consult auto mechanic if unsure of cooling system.
Ryden will not work if not directly applied to you radiator.

Below you can find a general guide for amount of Ryden to be added to your coolant system.
*Please check your vehicles owners manual for the radiator coolant capacity.
Engine Size |
Radiator Size |
Radiator Size |
Radiator Size |
Engine Size |
Under 15L |
15 - 45L |
Over 45L |
2 cycle |
100ml |
|
|
4 cylinder |
100ml |
|
|
6 cylinder |
100ml |
|
|
under 4000cc |
100ml |
|
|
V6 |
|
250ml |
|
V8 |
|
250ml |
|
under 6000cc |
|
250ml |
|
V12 or over 6000cc |
|
|
450ml |
9000cc |
|
|
450ml |
Ryden is available in three convenient sizes.
Please see chart above for your vehicle requirements.

Known in Japan as 'the Kyoto solution' Ryden is an entirely new approach to the long-standing problem of wasted energy and pollutants which costs the world economy literally billions of dollars everyday. A total departure from conventional thinking about how best to optimize the efficiency of the internal combustion engine, Ryden stands in a class of its own as the first product of its kind that actually delivers government documented test results, that indicate true emissions reductions and lower fuel consumption.
Please be sure to contact us if you require any further information.
Thank you for your interest in saving fuel and lowering emissions.