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.
A square is 100 square feet. It could be 2 feet by 50 feet or 10 feet by 10 feet it doesnt matter. A square =100 square feet. Multiply the length and width of your roof to get the total square feet. Then divide that number by 100 to find out how many squares of roofing material you need. It is a 10 x 10 foot area.