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AP RACING BRAKE FLUID R1 551 0.50L 269°-140°

€14.02

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LF-APR1-0.50L
CP7551-20

Radi-CAL™ R1 Brake Fluid 551, Re branded as Radi-CAL™ R1. R1 fluid is suitable for all forms of motorsport and conforms to FMVSS 116 DOT3 specification and is magnesium compatible but has a higher boiling point than normal brake fluids intended for road use. Designation. - Radi-CAL™ ...

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Radi-CAL™ R1 Brake Fluid

551, Re branded as Radi-CAL™ R1.
R1 fluid is suitable for all forms of motorsport and conforms to FMVSS 116 DOT3 specification and is magnesium compatible but has a higher boiling point than normal brake fluids intended for road use.
Designation.

- Radi-CAL™ R1.
‘Typical’ Boiling Points.
- New Dry 269°C
- ‘Wet’ E.R. 140°C
ADDITIONAL INFORMATION :

To obtain the best performance from racing brake systems, bleed the system thoroughly, immediately prior to each event using AP Racing brake fluid from a new sealed bottle. This is particularly important in wet or humid conditions or when the brakes are excessively hot. Always use fresh fluid and replace bottle cap when not in use. Never re-use brake fluid.
The use of a high temperature fluid should not be used as a substitute for proper brake cooling. Brake temperatures can be determined using AP Racing temperature stickers (CP2650-11) and thermal paints (kit No CP2649-5). If you require advice please Contact Us.

SILICONE BRAKE FLUIDS – A WORD OF CAUTION
AP RACING NEITHER MARKETS SUCH FLUIDS NOR RECOMMENDS THEIR USE WITH OUR OWN OR ANY OTHER BRAKING SYSTEM
Virtually all of the problems with Silicone Brake Fluids relate to:
Long/spongy pedal
Sudden loss of brakes
Hanging on of brakes
They reflect certain properties of silicone fluids identified by us over many years and recently ratified in SAE publications, namely:
High ambient viscosity
High air absorption
High compressibility
Low lubricity
Immiscibility with water
Research has shown that the relationships between problems reported and properties identified may be expressed as follows:
Long /Spongy Pedal
a) Compressibility, up to three times that of glycol based fluids
b) High viscosity, twice that of glycol based fluids, leading to slow rates of fill and retention of free air entrapped during filling, and hence bleeding difficulties.
Sudden loss of brakes
a) Air absorption. Gasification of absorbed air at relatively low temperature produces vapour lock effect.
b) Immiscibility (failure to mix) with water. Whilst the presence of dissolved water will reduce the boiling point of glycol based fluids any free water entrapped in silicone-filled systems will boil and produce vapour lock at much lower temperatures (100°C or thereabouts)
- Hanging on of brakes
a) Low lubricity. In disc brake systems the sole mechanism for normalisation of system pressure upon release of pedal pressure is a designed-in tendency of seals to recover to their ‘at rest’ attitude. Low lubricity works against this tendency.
b) High viscosity exacerbates the effect of (a) above.
It should not be assumed, therefore, that the high price of silicone fluids implies higher performance in hard driving or even normal road use.
AP Racing glycol based fluids do not contain the adverse properties described above. The recently introduced Factory R DOT 5.1 which exceeds the performance criteria of DOT 5 (Silicone), is suitable for all conditions likely to be encountered in modern driving conditions.
- Recommended Shelf Life
The recommended shelf life of an unopened fluid bottle is 18 months. AP Racing recommend any fluid manufactured after that time to be disposed off and not used.

Reference
LF-APR1-0.50L
CP7551-20

Specific References

Root RENAULT CLIO II (BB_, CB_) 3.0 V6 Sport (CB1A) - 166kW/226cv - 11/00-12/02
Root RENAULT CLIO II (BB_, CB_) 3.0 V6 Sport (CB1H, CB1U, CB2S) - 187kW/254cv - 12/02--
Root PORSCHE 911 2.0 L - 96kW/130cv - 08.1967-12.1968
Root PORSCHE 911 2.0 T - 81kW/110cv - 08.1968-02.1972
Root PORSCHE 911 2.2 T - 92kW/125cv - 01.1970-12.1972
Root PORSCHE 911 2.3 E - 121kW/165cv - 08.1971-12.1973
Root PORSCHE 911 2.3 S - 140kW/190cv - 08.1971-08.1973
Root PORSCHE 911 2.3 T - 96kW/130cv - 01.1972-12.1973
Root PORSCHE 911 2.3 T - 103kW/140cv - 08.1971-12.1973
Root PORSCHE 911 2.7 - 110kW/150cv - 09.1973-08.1975
Root PORSCHE 911 2.7 - 121kW/165cv - 09.1975-06.1977
Root PORSCHE 911 2.7 S Carrera - 129kW/175cv - 08.1973-01.1976
Root PORSCHE 911 2.7 SC Carrera RS - 154kW/209cv - 08.1972-01.1979
Root PORSCHE 911 3.0 SC - 150kW/204cv - 08.1980-07.1983
Root PORSCHE 911 3.0 SC Carrera - 132kW/180cv - 07.1977-06.1980
Root PORSCHE 911 3.0 SC Carrera - 147kW/200cv - 09.1975-06.1977
Root PORSCHE 911 3.0 SC Carrera - 154kW/209cv - 03.1974-10.1983
Root PORSCHE 911 3.2 - 160kW/218cv - 08.1986-08.1989
Root PORSCHE 911 3.2 SC Carrera - 152kW/207cv - 02.1984-06.1987
Root PORSCHE 911 3.2 SC Carrera - 170kW/231cv - 08.1983-08.1989
Root PORSCHE 911 Cabriolet 3.0 SC - 150kW/204cv - 08.1982-07.1983
Root PORSCHE 911 Cabriolet 3.2 Carrera Speedster - 160kW/218cv - 08.1986-08.1989
Root PORSCHE 911 Cabriolet 3.2 SC Carrera - 152kW/207cv - 10.1984-08.1989
Root PORSCHE 911 Cabriolet 3.2 SC Carrera - 170kW/231cv - 08.1983-08.1984
Root PORSCHE 911 Targa 2.0 E - 103kW/140cv - 09.1968-02.1972
Root PORSCHE 911 Targa 2.0 L - 96kW/131cv - 01.1967-11.1968
Root PORSCHE 911 Targa 2.0 S - 118kW/160cv - 07.1966-11.1968
Root PORSCHE 911 Targa 2.0 S - 125kW/170cv - 07.1966-02.1972
Root PORSCHE 911 Targa 2.0 T - 81kW/110cv - 06.1967-02.1972
Root PORSCHE 911 Targa 2.2 E - 114kW/155cv - 09.1969-02.1972
Root PORSCHE 911 Targa 2.2 S - 132kW/180cv - 09.1969-02.1972
Root PORSCHE 911 Targa 2.2 T - 92kW/125cv - 01.1970-12.1972
Root PORSCHE 911 Targa 2.3 E - 121kW/165cv - 08.1971-12.1973
Root PORSCHE 911 Targa 2.3 T - 96kW/130cv - 01.1972-12.1973
Root PORSCHE 911 Targa 2.7 - 110kW/150cv - 09.1973-08.1975
Root PORSCHE 911 Targa 2.7 - 121kW/165cv - 09.1975-06.1977
Root PORSCHE 911 Targa 2.7 S - 129kW/175cv - 08.1973-01.1976
Root PORSCHE 911 Targa 2.7 SC Carrera RS - 154kW/209cv - 08.1972-01.1979
Root PORSCHE 911 Targa 3.0 SC Carrera - 132kW/180cv - 07.1977-06.1980
Root PORSCHE 911 Targa 3.0 SC Carrera - 147kW/200cv - 09.1975-06.1977
Root BMW 3 (E30) 320 i - 92kW/125cv - 09.1982-12.1991
Root BMW 3 (E30) 320 i - 95kW/129cv - 10.1986-04.1991
Root BMW 3 Touring (E30) 320 i - 95kW/129cv - 01.1988-12.1991
Root BMW 5 (E28) 535 i, M 535 i - 136kW/185cv - 01.1985-12.1987
Root PORSCHE 356 Cabriolet/Speedster C 1600 SC - 70kW/95cv - 01.1963-12.1965
Root PORSCHE 356 Cabriolet/Speedster C 2000 GS Carrera 2 - 103kW/140cv - 01.1963-12.1965
Root PORSCHE 356 Coupe C 1600 SC - 70kW/95cv - 01.1963-12.1965
Root PORSCHE 912 Targa 1.6 - 66kW/90cv - 03.1965-02.1970
Root PORSCHE 914 1.7 - 59kW/80cv - 01.1969-12.1973
Root PORSCHE 914 1.8 - 63kW/86cv - 08.1973-02.1976
Root PORSCHE 914 2.0 - 74kW/100cv - 01.1972-12.1975
Root FIAT PANDA (141_) 800 - 25kW/34cv - 02.1981-12.1985
Root FIAT PANDA (141_) 900 - 29kW/40cv - 04.1992-12.1996
Root FIAT PANDA (141_) 900 - 33kW/45cv - 10.1980-06.1994
Root PORSCHE 914 /6 2.0 - 81kW/110cv - 11.1969-12.1973
Root LOTUS 2 ELEVEN 1.8 - 142kW/193cv - 04/07-07/11
Root LOTUS ELISE 1.6 - 100kW/136cv - 06/07--
Root LOTUS ELISE 1.8 - 88kW/120cv - 08/95-11/00
Root LOTUS ELISE 1.8 - 90kW/122cv - 11/00-08/05
Root LOTUS ELISE 1.8 - 99kW/135cv - 10/03--
Root LOTUS ELISE 1.8 - 118kW/160cv - 05/02--
Root LOTUS ELISE 1.8 - 140kW/190cv - 11/02--
Root LOTUS ELISE 1.8 - 141kW/192cv - 01/04--
Root LOTUS ELISE 1.8 - 162kW/220cv - 06/07--
Root LOTUS ELISE 111 S - 107kW/146cv - 03/99-11/00
Root LOTUS ELISE 340 R 1.8 - 132kW/180cv - 03/00-02/01
Root LOTUS EUROPA S 2.0 Turbo - 147kW/200cv - 07/06--
Root LOTUS EUROPA S 2.0 Turbo - 165kW/224cv - 09/08--

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