I am sceptical of such products. It might improve the situation but is not going to be a permanent problem. If the piston rings are bad, they have to be replaced.
Oil consumption are not due to wear of the rings but the oil rings are seized due to sludge accumulation.
Valve seals usually accounts for at least 70 % of oil consumption.
Sunday, July 14th, 2013 AT 5:48 PM