Liqui moly Top tec 1800 vrs 1800R

[Planerdude]

Been researching liqui moly top tec 1800 for my jeep zf 8 speed. Does anyone know the difference between the 1800 and the 1800R
Versions?
Thanks

 

[Kasyn]

The color. One of them is red.

 

[SEBZX79]

Been using 1800 in my bmws for the past 80k miles with great success.