2007 Volvo S40 Owner's Manual - Page 150
2007 Volvo S40 Manual
Page 150 highlights
The spare tire in your car is called a "Temporary Spare". Recommended tire pressure (see the placard on the B-pillar or on the fuel filler door) should be maintained irrespective of which position on the car the temporary spare tire is used on. In the event of damage to this tire, a new one can be purchased from your Volvo retailer. WARNING Current legislation prohibits the use of the "Temporary Spare" tire other than as a temporary replacement for a punctured tire. It must be replaced as soon as possible by a standard tire. Road holding and handling may be affected with the "Temporary Spare" in use. Do not exceed 50 mph (80 km/h). Do not drive farther than 50 miles (80 km) on a temporary spare tire. CAUTION The car must not be driven with wheels of different dimensions or with a spare tire other than the one that came with the car. The use of different size wheels can seriously damage your car's transmission. 168 07 Wheels and tires Wheel nuts Types of wheel nuts There are two different types of wheel nut, depending on whether the wheels are steel or aluminum. Steel rims - low nut Steel rims are normally secured using the low type of nut, although steel rims may also use the high type. WARNING Never use the short type of nut for aluminum wheels. This could cause the wheel to come loose. Aluminum wheels - high nut Only the high type of nut can be used for aluminum wheels. This is considerably different from other types of nut because it has a rotating conical thrust washer.