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.
best answer i m pretty sure the asker means 18 square roof not sq ft roofers talk in terms of squares 1 square 10x10 feet 100 square feet that math shows you will need 57 sheets of 4x8 plywood after cutting the pieces to match the roof they ll be many unusable small pieces i recommend buying 64 sheets for this job the 4x8 sheet is 32 sq ft so you get your 18 sq feet off the one sheet that must be a playhouse or dog house for a big dog