Home / Saskatchewan / Questions / Rules of the Road Rules of the Road Report Washer -30°C fails: A Dilute B Use -40°C fluid C Ignore D Boil Show Answer & Explanation Correct Answer: B. Use -40°C fluid Summer freezes. Previous Next More Rules of the Road Questions Class 7 covers: GDL drivers — hands-free: Hand-held phone: Demerit points on record for: Saskatchewan Demerit Point System: Often Missed All Saskatchewan Questions Smart Practice Mock Exam Road Signs Guide