The Driven HR range is the perfect choice for classic road and competition cars. They have enough ZDDP to protect flat-tappet engines with increased spring pressures of up to 30% higher than stock. The detergent levels can cope with up to 8000 road miles. The HR oils have a unique anti-corrosion pack which protects engines that see little use, eliminating the damaging effects of dry starts, and also contain an ethanol-neutralising additive to combat internal rust corrosion.
