Prolong Super Lubricants Engine Treatment is designed to protect gas and diesel engines from friction and heat, the company says. Engine Treatment is formulated with Prolong’s Anti-Friction Metal ...

Prolong Super Lubricants’ Super Heavy Duty Oil Stabilizer, which works in both gas and diesels, creates a seal around the piston rings to restore compression, slowing down exhaust blow-by and reducing ...

I got a free bottle of ProLong fuel treatment and Engine/Oil cleaner treatment. My buddy had one and simply let me put it in my car.<BR><BR>Did I notice a difference? I don't know. Temp was the same, ...