790 SURE^® UNIVERSAL GEAR LUBRICANT

BEGINS AND ENDS WITH QUALITY CAN TAKE THE HEAT CONTROLS DEPOSITS EXTENDS SEAL LIFE EXTREME PRESSURE ADDITIVES FOR ROCKWELL, LIMITED SLIP, AND MACK GO-J AS WELL AS API MT-1

Gears at top (run in conventional gear lube) show oxidation deposits while gears at bottom (run in 790 SURE® UNIVERSAL)  are virtually free of deposits!

Quality is the first, and last ingredient, to go in 790 SURE^® UNIVERSAL. Only "95 VI paraffin base oils" are used. These neutral oils are very resistant to temperature changes . . . this means it will not thin out, when temperatures increase, or thicken up, when temperatures drop. The neutral oils are so highly refined they are within two percent of having all impurities removed, and will not contribute to the formation of sludge, varnish, and other undesirable by-products, as many other bases will. Additive packages are incorporated with these neutral oils to build a superior gear oil.

Today's vehicles place enormous demands on lubricants. Some of the new aerodynamic equipment reduces air resistance, but at the same time reduces air flow used for cooling. Certain conditions can increase the transmission temperatures significantly. Such conditions might include high ambient temperatures, heavy loads, and extended slow speed travel. Fortunately, this productcan protect components at temperatures up to 100° F. higher (for short durations) than ordinary gear lubricants. This product has excellent thermal stability for extended oil service life and reduced component wear.  The new additive additive technology used in 790 SURE^® UNIVERSAL increases thermal stability (ability to resist chemical break-down at high temperatures) of the lubricant which in turn provides exceptional component cleanliness under high temperature applications.  In addition, the new additive system allows greater seal compatibility under heated conditions.  Thus 790 SURE^® UNIVERSAL meets and exceeds the PG-II Thermal Stability requirements.

Contains new additive technology that prevents sludge and gum deposits even when the oil is subjected to sustained high temperature service. This extra measure of oxidation stability reduces component wear as well as extends the oil service life. The new additive technology is necessary because some transmissions and final drives currently have operating temperatures from 280° F. up to 320° F. for short durations. This has created transmission synchronizer coking that has caused difficulty in gear changing. By eliminating the deposits, the shifting problems are eliminated as well. In addition, oil flow to gears and bearings is not obstructed by deposits in oil passageways or filters.

Able to perform at high temperatures and still be compatible with seals. It prevents deposits on and around the seals. In addition the product is chemically compatible with seal materials. A relationship is evident between the severity of seal deposits and premature leakage. Tests indicate temperatures around the seal area can run 30 to 50° F. in excess of sump temperatures. Deposits around the seal can cause elastomer losses which result in premature leakage. 790 SURE^® UNIVERSAL actually extends the life of seals under heated conditions.

Extreme pressure additives provide the load carrying properties of a gear oil. This lubricantincorporates some of the best extreme pressure additives available. A full 70 Timken OK Load test  for 790 SURE^® UNIVERSAL 80W/90 and a full 75 Timken OK for 790 SURE^® UNIVERSAL 85W/140 is typical. When extreme pressures are incurred, 790 SURE^® UNIVERSAL will provide ultimate protection against wear that may occur on gears. If wear can be kept minimal, operation costs can be drastically reduced. Will consistently out-perform other GL-5 gear lubricants by providing greater gear surface fatigue (spalling) resistance. In addition, wear metals (iron) will show up far less in lab analysis with 790 SURE^® UNIVERSAL.

Provides superior performance in many areas. The product of choice for Rockwell differentials. The new additive system also helps eliminate chatter in limited slip differentials like Track-Loc^®, Sure-Grip^®, Traction-Lok^®, Twin-Grip^®, and others. It also meets the Mack GO-J specifications as well as API MT-1.

A quick look at comparison photographs show why790 SURE® UNIVERSAL is the gear lubricant of choice--especially when evelated temperatures are involved.  For instance, take a look at the pictures of splined shafts.  As you see the one on the far right (running 790) is much cleaner, and the bright metal shows through.  The splined shaft on the left ran in a common gear lubricant that simply could not take the heat.  Varnish deposits developed because common gear lubricants are not thermally stable under elevated temperature conditions.

Precision bearings are one area where oil, sludge, varnish, etc. really clog up the works.  Once again a side by side comparison of bearings run in a normal GL-5 gear lube and Texas Refinery Corp.'s 790 SURE® UNIVERSAL GEAR LUBE (on the far right) show tremendous differences in thermal stability and the ability to keep critical parts clean.

When it comes to stress,  790 SURE® UNIVERSAL will consistently out-perform conventional lubricants even though the other lubricants will pass a GL-5 performance test.  The exceptional thermal stability of 790 SURE® UNIVERSAL (on the far right) translates directly to drive train service life.  The high quality base oils plus the superior additives provide extra protection against gear surface fatigue and of course that relates to longer equipment life.

Seals

One other area where 790 SURE® UNIVERSAL does a great job is preventing oil seal deposits which contribute to premature seal leakage.  As you can see blisters and deposits appear on the seal (on the left) run in a conventional GL-5 gear lubricant.  The seal (on the right) in contact with Texas Refinery Corp.'s 790 SURE® UNIVERSAL GEAR LUBE is free of those blisters and deposits and is therefore capable of maintaining seal integrity.  Test have definitely shown a direct relationship between the severity of the deposits and the time to leakage.  790 SURE® UNIVERSAL is able to take the heat, minimize oil seal deposits, and be compatible with seal elastomers.