Cart Product Price Quantity Total × Certified Lubricating Grease Specialist (CLGS) Exam Preparation $1,800.00 Certified Lubricating Grease Specialist (CLGS) Exam Preparation quantity $1,800.00 Code: Apply code Update cart Cart totals Subtotal $1,800.00 Total $1,800.00 Proceed to checkout Coupon codes are not eligible to be used for exam fees. A separate transaction is required.