Originally Posted By: 84zmyfavorite
When I have used Royal Purple(6 quarts total in Jeep 4.0 sump), it was Completely Clear on the Dipstick. No trace of Purple, or any color at all.
RP is only purple when new and for a very short time after poured into the engine. The purple is from dye that burns off very fast. After that it is the same color as most any other oil.