The Cadillac CT4
’s wheels use a 5x4.5 bolt pattern, also known as 5x115 in PCD. Grimy rims can ruin an otherwise smart appearance, much like a shabby pair of shoes. Caddy wheels are a little more complicated to replace than loafers, but we've got you covered. Read on for a complete guide to the Cadillac CT4 bolt pattern.
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The Cadillac CT4 bolt pattern is 5x4.5, or 5x115.
Don’t worry, these terms aren’t as complicated as they first appear. What they stand for is the number of bolts x the diameter of the circle they form. Ergo, a 5x4.5 (5x115) bolt pattern represents five bolts forming a circle 4.5 inches (115 mm) wide. This pattern can be found across a range of other car makes, from the sturdy Honda
to the luxurious Mercedes-Benz
. Make sure to write down the correct stud size, offset, and center bore for your wheels before you go to the parts store. Stud sizes measure the diameter x the distance between threads, offset the distance between the rim center and mounted portion of the wheel, and the center bore the diameter of the wheel's center opening, all in millimeters. To finish, you'll need to know how much torque, or twisting force, to apply.
Here’s everything you need:
Factory wheel size: 17.0 inches or 18.0 inches
Wheel tightening torque: 140 Nm
How to measure your Cadillac CT4’s bolt pattern
The CT4 uses an odd number of bolts—and the method used to measure them is a little odd, too.
First, grab a measuring tape or ruler. Start measuring from the outside edge of one lug hole, count two lug holes in any direction, and end your measurement in the center of the third lug hole. Put the number of bolts (five) in front of your results (in inches or millimeters) and that’s your bolt pattern.
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