Jaguar S-Type Tire Pressures

To find tires for your Jaguar S-Type see our Jaguar S-Type Tires page.

The ideal tire pressures for a Jaguar S-Type range from 26-36 PSI.
To find the ideal tire pressures for your car's year, model, and chosen tires follow the link to our Tire Pressure Guide.

If you want a crossply tire for the early S-Type Jaguar cars we recommend the 640 H 15 Avon Super Safety.
Our recommended radial tire is the 185 VR 15 PIRELLI CINTURATO CA67.
For lighter steering we recommend the 180 HR 15 Michelin XAS.
To find out more information on Jaguar S-Type tires follow the link to our Jaguar S-Type Tire Section.

Jaguar S-Type

Recommended Tire pressures for a Jaguar S-Type

The simplified table of recommended Longstone tire pressures below is based on a combination of our extensive experience in selling, fitting, and driving on classic tires, as well as period data from historic tire fitment guides published by Michelin, Pirelli, and Dunlop.

To see the genuine historical fitment guides published by tire manufacturers in period, see our Tire Fitment Guides.

Tire	Front Tire Pressure (PSI/BAR)	Rear Tire Pressure (PSI/BAR)
640 H 15 Avon Super Safety	28 / 1.93	26 / 1.79
185 VR 15 PIRELLI CINTURATO CA67	30 / 2.10	30 / 2.10
180 HR 15 Michelin XAS	26 / 1.79	28 / 1.93

Please note that for high-speed use with radial tires we recommend increasing pressure to 36 PSI front and rear.

Jaguar S-Type on Whitewall Tires

Jaguar S-Type Tires

640 H 15 Dunlop RS5 crossply tires were initially supplied on 1960s S Type Jaguars. Unfortunately, these tires are no longer manufactured. If you want to preserve automotive history and/or prefer the smooth, wafty ride of a crossply tire, we recommend the 640 H 15 Avon Super Safety.

In 1964, Jaguar installed 185 R 15 Dunlop SP41 radial tires on the S-Type. Unfortunately, Dunlop no longer manufactures classic road tires. The 185 VR 15 PIRELLI CINTURATO CA67 radial tire is ideal for an S-type Jaguar. The PIRELLI CINTURATO was the 1960s' sporting radial tire.

If you find your S-steering Type's to be a little heavy, the 180 HR 15 Michelin XAS is likewise excellent and provides softer steering. The 180 HR 15 Michelin XAS was created in collaboration with Citroen and Michelin to help the DS drive straight. These significantly improve the usability of 1960s automobiles on contemporary highways, whereas a crossply tire will struggle to stay completely straight on high-speed motorways.

Although Dunlop used to produce a 185 x 15 Dunlop SP Sport Aquajet (these days it is produced under licence by Avon), we still suggest Pirelli or Michelin.

According to our historical fitting recommendations, the S-Type used tube-style wheels throughout its production. Innertubes are required if you are using the original wheels or wire wheels. With these specified tires, the Michelin 15F Innertube is the best fitting tube for an S Type Jaguar.

1966 Jaguar S-Type

Jaguar S-Type Specifications

1966 S-Type Jaguar Advert

Q: What is the engine configuration, capacity, and valve system of the Jaguar S-Type engine?

A: The Jaguar 6-cylinder engine is an in-line configuration with an iron block and alloy head. It has two valves per cylinder and a double overhead camshaft (DOHC) valve system. The engine comes in two capacities: 3.4 liters (3442 cc) and 3.8 liters (3781 cc).

Q: What are the bore and stroke measurements of the Jaguar S-Type engine?

A: The bore and stroke measurements of the 3.4-liter engine are 83 mm x 106 mm, while the 3.8-liter engine has a bore and stroke of 87 mm x 106 mm.

Q: What is the compression ratio of the Jaguar S-Type engine?

A: The Jaguar 6-cylinder engine has a compression ratio of 8:1, with optional ratios of 7:1 and 9:1.

Q: What is the maximum power output and torque of the Jaguar Jaguar S-Type engine?

A: The 3.4-liter engine has a maximum power output of 210 bhp at 5500 rpm and a maximum torque of 216 lb-ft at 3000 rpm. The 3.8-liter engine has a maximum power output of 220 bhp at 5500 rpm and a maximum torque of 240 lb-ft at 3000 rpm.

Q: What is the carburettor configuration of the Jaguar S-Type engine?

A: The Jaguar 6-cylinder engine is equipped with twin SU HD6 carburettors with a size of 1.75 inches.

Q: What is the suspension configuration of the Jaguar S-Type?

A: The front suspension of the Jaguar saloon is independent with wishbones, coil springs, telescopic dampers, and an anti-roll bar. The rear suspension is independent with a lower wishbone and driveshaft as the upper link, radius arms, and twin coil springs with telescopic dampers.

Q: What is the steering system of the Jaguar S-Type?

A: The steering system of the Jaguar saloon is a recirculating ball with worm and nut, and power assistance is optional.

Q: What is the brake configuration of the Jaguar S-Type?

A: The Jaguar saloon has servo-assisted discs on all four wheels, with the rear brakes inboard.

Q: What is the body/chassis configuration of the Jaguar S-Type?

A: The Jaguar saloon has a unitary bodyshell with a bolted front subframe, and it is a five-seater saloon with a front-engine rear-wheel drive configuration.

Q: What are the tire/wheel specifications of the Jaguar S-Type?

A: The Jaguar saloon can be equipped with either 6.40 x 15 crossply or 185 x 15 radial tires with a 5.0-inch rim. The car has five-stud disc wheels with Borrani wire spoke options.

If you are interested in our views on the options of tires for your S-type, you might find this short film I made about tires for a MK2 Jag useful.

MkII Jaguar Tires Explained

History of the Jaguar S-Type

The Jaguar S-Type was first introduced in 1963 as a luxury saloon car, aimed to compete with the likes of the BMW 5 Series and Mercedes-Benz E-Class. The S-Type was produced until 1968, during which time it underwent several changes in design and specifications.

Initially, the S-Type was fitted with a 3.4-liter engine, producing 210 bhp and reaching a top speed of 120 mph. The car featured a unitary bodyshell with a bolted front subframe, and a front-engine rear-wheel drive configuration. The suspension system included an independent front suspension with wishbones, coil springs, telescopic dampers, and an anti-roll bar, as well as an independent rear suspension with a lower wishbone and driveshaft as the upper link, radius arms, and twin coil springs with telescopic dampers.

Jaguar S-Type 3.4 & 3.8 Advert

S-Type Jaguar Pressures

The S-Type's design was somewhat controversial, with some appreciating the car's distinctive style, and others finding it unappealing. The car's body featured a somewhat bulbous design, with a sloping roofline and a prominent front grille. The interior, however, was praised for its comfortable seats and well-appointed dashboard.

Over the course of its production, the S-Type saw several changes in specifications. In 1965, the engine was upgraded to a 3.8-liter unit, producing 220 bhp and reaching a top speed of 125 mph. The car's brakes were also upgraded to servo-assisted discs on all four wheels, with the rear brakes inboard.

The S-Type was a successful racing car, winning numerous international races and championships throughout the 1960s, including the Monte Carlo Rally and the Tour de France Automobile.

While the S-Type was not a commercial success during its production run, it has since gained a following among enthusiasts and collectors. The car's unique styling and luxurious features have made it a desirable classic car.

The S-Type was eventually succeeded by the XJ6 saloon in 1968, which featured a more modern design and a number of technological advancements. However, the S-Type's distinctive styling and sporting heritage have ensured its lasting legacy among Jaguar enthusiasts.