2008 Cadillac Escalade — RWD
The 2008 Cadillac Escalade RWD shipped with 2 different factory tire sizes, depending on the wheel package it left the factory with (this can also reflect a staggered front/rear setup). Check your tire sidewall or door placard to confirm which one applies to your vehicle.
This trim shipped with more than one tire size (staggered fitment, front/rear, or optional wheel package). Confirm which one matches your vehicle by checking your tire sidewall or door placard.
265/65R18
| Section width | 265 mm |
|---|---|
| Aspect ratio (sidewall height) | 65% (172.3 mm) |
| Rim diameter | 18" |
| Overall tire diameter | ~31.6" |
| Revolutions per mile | ~639 |
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285/45R22
| Section width | 285 mm |
|---|---|
| Aspect ratio (sidewall height) | 45% (128.3 mm) |
| Rim diameter | 22" |
| Overall tire diameter | ~32.1" |
| Revolutions per mile | ~628 |
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What this size means for your Cadillac Escalade
On the 2008 Cadillac Escalade RWD, the factory 265/65R18 measures about 31.6″ in overall diameter with a 172.3 mm (6.8″) sidewall, and completes roughly 639 revolutions per mile. Its 65-series aspect ratio gives a taller, comfort-biased sidewall that favors ride quality and shrugs off rough pavement. In tire terms it is a passenger (P-metric / Euro-metric) size.
The 265/65R18 and 285/45R22 differ in both width and overall diameter (0.5″, 1.6%), which usually means a staggered front/rear setup — the two sizes are not interchangeable side to side, so match each to its correct axle.
On a vehicle of this age, the Cadillac Escalade may have been refitted with a slightly different replacement size somewhere in its life, so check the current sidewall — not just the factory spec — before buying.
Other 2008 Cadillac Escalade trims
- AWD 265/65R18 / 285/45R22
- ESV 265/65R18 / 285/45R22
- ESV Platinum 265/65R18 / 285/45R22
- EXT 265/65R18 / 285/45R22
- Platinum 265/65R18 / 285/45R22
Cadillac Escalade tire sizes by year
- 2026 Cadillac Escalade 275/50R22 / 285/40R24
- 2025 Cadillac Escalade 275/50R22 / 285/40R24
- 2024 Cadillac Escalade 275/50R22
- 2023 Cadillac Escalade 275/50R22
- 2022 Cadillac Escalade 275/50R22
- 2021 Cadillac Escalade 275/50R22
- 2020 Cadillac Escalade 275/55R20 / 285/45R22
- 2019 Cadillac Escalade 275/55R20 / 285/45R22
- 2018 Cadillac Escalade 275/55R20 / 285/45R22
- 2017 Cadillac Escalade 275/55R20
How to read a tire size
A tire size like 225/45R17 breaks down into three parts:
the first number is the section width in millimeters
(the tire's width from sidewall to sidewall), the second is the
aspect ratio — the sidewall's height as a percentage of
that width — and the number after the "R" is the rim
diameter in inches. A letter prefix (P or LT) indicates
Passenger or Light Truck construction; its absence usually means
Euro-metric sizing.
Some trucks and off-road tires instead use "flotation" sizing, like
37X12.50R17 — here the numbers are the tire's overall
diameter and width in inches directly, with the rim diameter last.
Always verify against the tire information placard on your driver's-side door jamb or your owner's manual before purchasing — tire size can vary by factory option package even within the same trim.