http://www.restoreusa.com/
The active incredients Silver, Copper and Lead.
Remember this is not a oil treatment for increased lubrication it is a engine block treatment.
I know it works great.
I know cause i used it in my Legnum (4G93), CK Lancer, Laser(4EFTE), E24, 626, Rio, EG Civic.
But like Sham1984 said it really is for older cars.
Cars which gained the most from it. We tested compression before and after.
Laser (i just dumped it in before i install d engine just caused i was hooked on the sheit)
626 FE3 2.0.... Hydralic lifters silent and increased compression
Civic. Oil was leaking everywhere on the top side. Hardly leaked after increased compression again
E24 less smoke an oil burning yeah compression went up here too
Commpression in GDI was high already but i still added it for the lifters sake i was fed up of d ticktickticktick in traffic. Fella who sold it to me said it for old engines eh! I told him i dumping it in a Shark mouth an he buss out laughing. I think i was d first guy to use it in GDI
GDI is a new engine so I dont think we should add engine restore with every oil change. I introduced a guy to it an he abused it like a drug after a while a lifter actually remained stuck open and burned. I dont know how or why maybe it was just freak accident an d valve got stuffed with a rouge piece of lead.
Well I know he said he never used a engine oil flush treatment at oil changes
anyway never added a can unless u hear a slight panside in d mornings.