THE TRUTH ABOUT SYNTHETIC OIL THE UNTOLD STORY

THE TRUTH ABOUT SYNTHETIC OIL THE UNTOLD STORY ABOUT OIL CHANGE : The pins show no wear at all. The piston crowns and lands show a normal amount of carbon. The skirts are very clean with a few fine vertical lines. ” All the rings are free. None are broken. No plugging whatsoever in the oil rings. ” Probably 95 percent of the crosshatching is still in the liners. No scuffing, no cavitation in the liners. - by independent engine rater After 409, 000 miles without an oil On June 21 st 1999, at 1, 012, 825 change, Mack E 7 -400 engine in miles, the above Peterbilt rolled this truck was as wear-free as an into Covington Detroit Diesel for engine in comparable service the 3 rd time during the past 9 treated to 20 x the oil changes. years for an internal engine inspection. The past two times, EXTENDED OIL at 505, 000 and 761, 000 miles, Shell Oil and Covington Detroit DRAIN Diesel personnel inspected the MYTH or FACT ? engine for contamination & wear found out no problem at all. Maintenance Excellence Rolly Angeles

THE TRUTH ABOUT SYNTHETIC OIL THE UNTOLD STORY ABOUT OIL CHANGE : 1990 Peterbilt at 1, 012, 825 miles with only 1 unnecessary oil change Rod bearings mark shows no measurable wear Main bearings shows no measurable wear Clean block with no build up Clean head at 1 m miles Old oil with 750, 000 miles was poured back into the engine, next stop 1. 5 miles This Peterbuild is working hard for Pepsi Colain Gulfport, MS • This Peterbuild had been running for 9 years at 1, 000 miles with one unnecessary oil change, their findings, exceptionally clean engine with no measurable wear, rings found minimal wear and was replaced • The Secret, of Gulf Coast Filter Bu-Pass Lube Oil Filter and with Howard Hill of Shell (left) were the use of conventional petroleum oil (Shell Rotella T 15 W - 40) & surprise to see how clean the not synthetic oil. Replacing the GFC filter every 50, 000 miles + engine was at 1 million miles regular checking through an oil analysis check Maintenance Excellence Rolly Angeles

THE TRUTH ABOUT SYNTHETIC OIL THE UNTOLD STORY ABOUT OIL CHANGE : No wear at all Light wear Very, very good Light wear No scuffing and cavitation Minimal wear • After 409, 000 miles without an oil change, Haywood Gray owner of Mack E 7 -400 have his truck examined by a Mack dealership in Dec. 96 by Dick Malby (certified engine rater) and engine showed light to moderate wear throughout. The cylinder liners, bearings, pistons, rings and oil pump were found to be in excellent condition • Gray’s use of Amsoil Synthetic Heavy Duty Diesel and Marine 15 W-40 motor oil, Amsoil bypass filter and regular oil analysis check Maintenance Excellence Rolly Angeles