specifications. If your vehicle was originally charged with R12 refrigerant, for example, the oil type specified, 'mineral', will not apply. Additionally, General Motors issues Bulletin # 02-01-39-004B replacing PAG 150 oil with a lower viscocity oil.
The term square in reference to roofing materials refers to 100 square feet of roof area. One square of slate is the amount of slate that it takes to cover 100 square feet of roof area. A 10 foot x 10 foot section of roof would equal one square. So would a 4 foot x 25 foot section. Ditto for a 5 foot x 20 foot.
Multiply the width x length to obtain the house area in sq ft. if your house isnât square or rectangle, compute each piece then total the sums. Example: a 50 x 30 ft (length x width) = 1500 sq ft. To get the roof size, convert the sq ft area to roofing squares. Assuming the area is 1500 sq ft, it should be divided by 100 (100 is always the number to use). The answer is 15 squares.