yes could be something like rings or valve stem seals
ive also heard good things about this "restore" product from others .. and ive personally used it in very high mileage cars with good results (embarassing but true
) ..
using a heavier weight oil can sometimes help higher mileage engines .. like a 20w50 .. hence questionable products like "motor honey" which are like cold molasses
rislone has a good viscosity enhancer... it has the word "ring" somewhere in the name...
a lot of these products .. and the "high mileage formula" oils .. contain seal conditioners that cause various things to swell in the hopes of improving the situation.. (which in the long run may or may not be so good for the motor)...
uhm...low mileage JDM ZCs are pretty cheap ... but that probably isnt what u want to hear
