"I have an 81 Chevy Malibu Classic, with a 350 5.7 liter small block motor.I had this motor installed back in 2004,it`s now 12-2-14. It now has about 80,000 miles on her. It doesn`t smoke or burn a lick of oil, plus the oil pressure stay`s at 60 lbs. It`s because I've alway's added a quart of Lucas Heavy Duty Oil Stabilizer, with 4 quarts of 20W 50 motor oil. This stuff does what it says. It's worth the extra $10.00 each and every oil change. Thanks for the best stuff out there." -Malibu Man from Kenner, LA