I knew my little 87 used some oil and leaked some, no big deal, right? Till I checked it one day and the oil was just touching the dipstick, was about 2 qts low only holds 4, so no telling how long it had been low, a friend said it's done to late but I HAD lucas oil stabilizer and 15/40 rotella oil in it and 167,330 miles later the little 4 cyl still keeps on going, wish I'd known about lucas 11 years ago, cause I had a 90 F-150 and it had a leak, long story short, it had to have another motor, and the bad thing was, it only had 75,000 on it had it was almost, paid off, I know if I would've had lucas then it would still have the same motor, live and learn, if you don't use lucas why not start today, might wish you had some, if you tend to keep your auto for a loooon time like I do.