Can I use Rislone Engine Oil Supplement with Zinc Treatment in my newer vehicle?
No, you should not use Engine Oil Supplement with Zinc Treatment in 2005 and later gasoline and 2007 and later diesel engines. Current oils have enough Zinc to protect moving parts inside newer engines. However, to help prevent sludge and keep that engine clean, it is recommended to use Rislone Engine Treatment p/n 100QR on all newer engines.