GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2005 🢒 CTS 🢒 General Information 🢒 General Information 🢒 Approximate Fluid Capacities

The following approximate capacities are given in English and metric conversions. See Fluid and Lubricant Recommendations for more information. All capacities are approximate. When adding, be sure to fill to the approximate level, as recommended in this manual. Recheck fluid level after filling.

Application

Specification

Metric

English

Cooling System

  • 2.8L HF V6 - RPO LP1

10.0 liters

10.6 quarts

  • 3.6L HF V6 - RPO LY7

11.3 liters

12.0 quarts

  • 5.7L V8 - RPO LS6

12.7 liters

13.4 quarts

Engine Oil With Filter

  • 2.8L HF V6 - RPO LP1

5.7 liters

6.0 quarts

  • 3.6L HF V6 - RPO LY7

5.7 liters

6.0 quarts

  • 5.7L V8 - RPO LS6

6.151 liters

6.5 quarts

Engine Oil Without Filter

  • 3.6L HF V6 - RPO LY7

5.20 liters

5.5 quarts

  • 5.7L V8 - RPO LS6

5.678 liters

6.0 quarts

Fuel Tank

66.2 liters

17.5 gallons

Rear Differential Driveline/Axle - Locking/Limited Slip

  • Drain and Fill With Cover Removed

1.2 liters

1.27 quarts

  • Drain and Fill With Use of Drain Plug

1.0 liters

1.06 quarts

Rear Differential Driveline/Axle - Locking/Limited Slip Additive

  • Limited Slip Additive Drain and Fill With Cover Removed*

100 ml

3.38 oz

  • Limited Slip Additive Drain and Fill With Use of Drain Plug*

70 ml

2.37 oz

Transmission/Transaxle

  • Automatic Transmission/Transaxle - 5L40-E/5L50-E Complete Overhaul

8.5 liters

7.4 quarts

  • Automatic Transmission/Transaxle - 5L40-E/5L50-E Bottom Pan Removal

6.0 liters

9.0 quarts

  • Manual Transmission - Aisin AV6

1.8 liters

1.9 quarts

  • Manual Transmission - Tremec 6 Speed

3.5 liters

3.7 quarts

* The limited slip additive container capacity is greater than the amount needed. Only add the specified amount.