Rolly Angeles

THE TRUTH ABOUT SYNTHETIC OILTHE TRUTH ABOUT SYNTHETIC OIL

Maintenance Excellence

THE UNTOLD STORY ABOUT OIL CHANGE :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 thecrosshatching is still in the liners. No scuffing, no cavitation in theliners. - by independent engine rater

On June 21st 1999, at 1,012,825 miles, the above Peterbilt rolled into Covington Detroit Diesel for the 3rd time during the past 9 years for an internal engine inspection. The past two times,at 505,000 and 761,000 miles, Shell Oil and Covington Detroit Diesel personnel inspected the engine for contamination & wearfound out no problem at all.

After 409,000 miles without an oil change, Mack E7-400 engine inthis truck was as wear-free as an engine in comparable service treated to 20x the oil changes.

EXTENDED OILEXTENDED OIL DRAINDRAIN

MYTH or FACT ?MYTH or FACT ?

Rolly Angeles

THE TRUTH ABOUT SYNTHETIC OILTHE TRUTH ABOUT SYNTHETIC OIL

Maintenance Excellence

1990 Peterbilt at 1,012,825 miles1990 Peterbilt at 1,012,825 mileswith only 1 unnecessary oil changewith only 1 unnecessary oil change

Rod bearings mark shows Rod bearings mark shows no measurable wearno measurable wear

Main bearings shows noMain bearings shows nomeasurable wearmeasurable wear

Clean block withClean block withno build upno build up

Clean head at 1m milesClean head at 1m miles Old oil with 750,000 miles was poured back Old oil with 750,000 miles was poured back into the engine, next stop 1.5 milesinto the engine, next stop 1.5 miles

This Peterbuild is working hardThis Peterbuild is working hardfor Pepsi Colain Gulfport, MSfor Pepsi Colain Gulfport, MS

• This Peterbuild had been running for 9 years at 1,000,000 miles withThis Peterbuild had been running for 9 years at 1,000,000 miles with one unnecessary oil change, their findings, exceptionally clean one unnecessary oil change, their findings, exceptionally clean engine with no measurable wear, rings found minimal wear andengine with no measurable wear, rings found minimal wear and was replacedwas replaced

Howard Hill of Shell (left) wereHoward Hill of Shell (left) were surprise to see how clean thesurprise to see how clean theengine was at 1 million milesengine was at 1 million miles

• The Secret, of Gulf Coast Filter Bu-Pass Lube Oil Filter and with The Secret, of Gulf Coast Filter Bu-Pass Lube Oil Filter and with the use of conventional petroleum oil (Shell Rotella T 15W - 40) &the use of conventional petroleum oil (Shell Rotella T 15W - 40) & not synthetic oil. Replacing the GFC filter every 50,000 miles +not synthetic oil. Replacing the GFC filter every 50,000 miles + regular checking through an oil analysis checkregular checking through an oil analysis check

THE UNTOLD STORY ABOUT OIL CHANGE :THE UNTOLD STORY ABOUT OIL CHANGE :

Rolly Angeles

THE TRUTH ABOUT SYNTHETIC OILTHE TRUTH ABOUT SYNTHETIC OIL

Maintenance Excellence

THE UNTOLD STORY ABOUT OIL CHANGE :THE UNTOLD STORY ABOUT OIL CHANGE :

No wear at allNo wear at all Very, very goodVery, very good No scuffing andNo scuffing and cavitationcavitation

Light wearLight wear Light wearLight wear Minimal wearMinimal wear

• After 409,000 miles without an oil change, Haywood Gray owner ofAfter 409,000 miles without an oil change, Haywood Gray owner of Mack E7-400 have his truck examined by a Mack dealership in Dec.Mack E7-400 have his truck examined by a Mack dealership in Dec. 96 by Dick Malby (certified engine rater) and engine showed light to 96 by Dick Malby (certified engine rater) and engine showed light to moderate wear throughout. The cylinder liners, bearings, pistons, moderate wear throughout. The cylinder liners, bearings, pistons, rings and oil pump were found to be in excellent conditionrings and oil pump were found to be in excellent condition

• Gray’s use of Amsoil Synthetic Heavy Duty Diesel and MarineGray’s use of Amsoil Synthetic Heavy Duty Diesel and Marine 15W-40 motor oil, Amsoil bypass filter and regular oil analysis check15W-40 motor oil, Amsoil bypass filter and regular oil analysis check