The best way to use the red line additive should be every 5000 km in the empty tank state of the whole bottle into, and then fill the tank on the high-speed! Sub-scale grading plus the effect is not very obvious. Another friend suggested that the old car by the first method may cause the use of three-way catalytic clogging
Because the old US also found that the whole bottle down to write more sales, the effect is more obvious. And eat the same as the WG. The The A scale plus a scale effect in fact the same, as you used to 8T on the numb, and did not feel how strong the power
