Installation Time
(approx) 1 Hour
Difficulty Level:
Simple installation for anyone.
FREE 1 to 3-Day Delivery on Orders $119+ Details
$19.99
FREE Shipping on orders over $119 Market Price $22.99 You Save 13% ($3.00) Up to 10% off for Military & First Responders! See DetailsSaved - View your saved items
We're sorry. We couldn't save this product at this time.
or use
ROYAL PURPLE MAX 75w140 GEAR OIL IS A GOOD CHOICE FOR ANY MUSTANG OWNER WHO’S PICKING UP A NEAR SET OF REAR GEARS AND WANTS TO MAKE SURE THEY’RE PICKING UP A REPUTABLE, RELIABLE LUBRICATION. ONE QUART HERE RUNS AT JUST UNDER THE $20 MARK, AND THE APPLYING NEW GEAR OIL GETS ABOUT A 2 OUT OF 3 WRENCHES ON OUR DIFFICULTY METER.THERE ARE SOME FACTORS THAT COME INTO PLAY WHEN PICKING OUT YOUR NEW GEAR OIL. BUT IN ORDER TO CHOOSE THE RIGHT OIL, YOU’LL FIRST NEED TO UNDERSTAND THEIR GRADES BECAUSE IT’S CRUTIAL IN MAKIG SURE YOUR GEARS MESH AND TURN SMOOTHLY WITH PROPER LUBRICATION. THIS ONE HERE IS GRADED AT 75W140. THE GRADING SYSTEM IS MEASURING THE VISCOCITY OF THE OIL, WHICH IS A MEASURMENT OF THE THICKNESS OF A LIQUID. THE LARGER THE NUMBER, THE MORE VISCOUS, OR THICK THE OIL IS. YOU’D WANT A THICKER OIL IF YOU’RE CAR IS UNDER HEAVY WEIGHT OR LOAD, OR IF YOU’VE GOT A HEAVY FOOT AND REALLY BEAT ON IT. WHEN YOU UPGRADE GEARS, MOST OWNERS WOULD UPGRADE TO A THICKER GEAR OIL TO SOMETHING LIKE THIS 75W140, ALTHOUGH IT MAY VARY DEPENDING ON YOUR NEW GEAR MANUFACTURERS RECOMMENDATIONS, AND WHAT WOULD BE BEST FOR YOUR APPLICATION.THIS GEAR OIL FROM ROYAL PURAL IS A MULTI-GRADE, SINCE YOU’RE SEEING TWO NUMBERS THERE. THE 75W BEING THE FIRST, AND 140 THE SECOND GRADE. THE W AFTER 75 REFERS TO IT’S WINTER VISCOSITY RATING, MEANING IT’S CERTIFIED AND TESTED AT 32 DEGREES FAHRENHEIT. THE 140, WITHOUT THE W, REFERS TO IT’S HEAT RATING WITH A CERTIFIED TESTING AT 212 DEGREES. A MULTI-GRADE OIL LIKE THIS DOESN’T NEED TO BE CHANGED OUT FOR THE DIFFERENT CLIMATES IT MAY BE EXPOSED TO. IF YOU’RE LOOKING FOR THE MORE VISCOUS OIL LIKE THIS ONE HERE, IT COMES AT ABOUT $20 A QUART. YOU’LL WANT TO BE SURE TO LEARN HOW MANY QUARTS YOUR MUSTANG NEEDS, AS IT CAN DIFFER DEPENDING ON GEN AND PACKAGE.ANYTIME YOU’RE CHANGING GEARS, YOU’LL NEED NEW GEAR OIL. SO THE INSTALLATION IS PRETTY INVOLVED. APPLYING THE GEAR OIL ITSELF ISN’T HARD, BUT IT REALLY DEPENDS ON YOUR METHOD. IF YOU’RE NOT ACTUALLY CHANGING GEARS, BUT JUST NEED TO CHANGE OUT THE OIL, YOU CAN PICK UP AN GEAR OIL PUMP AND TUBING IN SOME CASES. EVEN WITH THAT IN MIND, THIS METHOD GET MORE OF A 1 OUT OF 3 WRENCHES ON OUR DIFFICULTY METER. HOWEVER, IF YOU’RE COMPLETELY CHANGING GEARS, THAT PROCESS IS A FULL 3 OUT OF 3 WRENCHES ON THE DIFFICULTY METER BECAUSE YOU’RE COMPLETELY DISASSEMBLING THE DIFFERENTIAL WHEN APPLING THE NEW OIL. WITH THAT SAID, INSTALL TIMES CAN VARY FROM 1 HOUR TO SEVERAL.THAT WRAPS THIS UP SO IF YOU’RE IN NEED OF NEW GEAR OIL AND YOU’RE LEANING ON THE SIDE OF A MORE VISOUS OR THICKER OIL, THE 75W140 ROYAL PURPLE MAX GEAR OIL CAN BE FOUND RIGHT HERE AT AMERICANMUSCLE.COM.
Features, Description, Reviews, Q&A, Specs & Installation
Brand | Royal Purple |
Fluid Type | Gear Oil |
Royal Purple 01301
CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation Info
Installation Time
(approx) 1 Hour
Difficulty Level:
Simple installation for anyone.
What's in the Box
Tech Guides:
10 More Questions