Vehicle database
JAGUAR XK8
X100 / 1999-2000 / Coupe / Convertible / 2-door coupe / 2-door convertible
Global (UK, US, Europe, others)Global (primarily Europe, North America, and Australia)Coverage: expanded
Year and trim selector
Choose the exact year and trim to see engine, oil and service details.
1999 JAGUAR XK8 AJ26S (X100)
X100 / AJ26S / 4.0L DOHC V8 naturally aspirated engine, aluminum construction, variable valve timing on intake cams
GoldOpen details
Oil type: SAE 5W-30 fully synthetic engine oil meeting Jaguar approvalsOil capacity: 6.0 liters (including filter) service-fillRelated: AJ26S, X100
2000 JAGUAR XK8 AJ-V8 4.0L (AJ26) (X100)
X100 / AJ-V8 4.0L (AJ26) / 4.0L naturally aspirated DOHC V8, aluminum block and heads
SilverOpen details
Oil type: 5W-30 fully synthetic motor oil meeting Jaguar specsOil capacity: 6.9 liters (including filter), service-fill capacityRelated: P0300, P0420, P0171, P0455
Engine codes by year
| Year | Trim | Engine codes | Displacement | Fuel system |
|---|---|---|---|---|
| 1999 | technical-profile | AJ26S | 3996 cc (4.0L) | Sequential multi-point fuel injection |
| 2000 | technical-profile | AJ-V8 4.0L (AJ26) | 3996 cc | Electronic multi-point fuel injection |
Oil capacity by engine
| Year | Engine codes | Oil type | Oil capacity | Fluid |
|---|---|---|---|---|
| 1999 | AJ26S | SAE 5W-30 fully synthetic engine oil meeting Jaguar approvals | 6.0 liters (including filter) service-fill | ATF type recommended by Jaguar (ZF Lifeguard 2 or equivalent) |
| 2000 | AJ-V8 4.0L (AJ26) | 5W-30 fully synthetic motor oil meeting Jaguar specs | 6.9 liters (including filter), service-fill capacity | Specified automatic transmission fluid (e.g., ZF Lifeguard Fluid) |
Technical specifications
- Engines: AJ26S, AJ-V8 4.0L (AJ26)
- Transmissions: 5-speed manual (available on some markets), 4-speed ZF 4HP-24 automatic, ATF type recommended by Jaguar (ZF Lifeguard 2 or equivalent), Not available; 6-speed automatic only (ZFA3424E/ZF 4HP24), 4-speed automatic with adaptive electronic controls, Specified automatic transmission fluid (e.g., ZF Lifeguard Fluid)
- Tire sizes: Front: 225/55ZR16, Rear: 245/50ZR16, P245/45ZR18 front and rear (standard wheels), variations with optional wheels exist
- Bolt pattern: Verify by exact trim and wheel package
- Wheel torque: Verify by VIN and wheel package
- Battery: Verify by engine, market and equipment package
Fluids and service data
- Engine oil: SAE 5W-30 fully synthetic engine oil meeting Jaguar approvals / 5W-30 fully synthetic motor oil meeting Jaguar specs
- Transmission fluid: ATF type recommended by Jaguar (ZF Lifeguard 2 or equivalent) / Specified automatic transmission fluid (e.g., ZF Lifeguard Fluid)
- Coolant: 10.0 liters / 10.5 liters (approximate)
- Brake fluid: DOT 4 standard / DOT 4 specification brake fluid
Known problems
- Rear suspension bushings wear
- Intake manifold vacuum leak
- Variable valve timing solenoid failures
- Early V8 head gasket issues in some areas
- Dashboard instrument cluster failures
- Suspension bushings wear