type car/engine: skyline r32 rb20det type m
hey i have always been using castrol gtx 10w-40 non-synthetic in my car just bought oil off a skyline shop called pur automotive its 0w-50 eneos nippon fully synthetic the owner says it will work good and give more power in my car and for me to only use it for the race track any pre-cautions or suggestions on this???------
i took out my stock sparkplugs the ones that were in there are ngk R pfr5a went to a&a auto parts got them to match me up with some and it was a special order spent 100$ for six those are: ngk laser platinum premium pfr5a-11 while i was at this skyline shop the guy also sold me spark plugs brand new for 30 bucksfor all six and said that these are the correct ones to use: ngk v-power resistor type spark plugs bkr7e
is this pur automotive guy correct and should i listen to him?
also when i took out my old park plugs i found a puddle of oil in the first two , i think this oil must of cam from a valve cover leak in the gasket