Weekly quiz: motor oil grades
Which lubricating oil should you use in your engine ?
The answer is found in your user’s manual: always use the one recommended by your engine’s manufacturer. This holds whether that engine is a gasoline or a diesel engine, and whether that engine is aboard your boat or in your vehicle.
Side note: have you seen the recent news? Ready4Sea can now be used for your car or motorhome, too!
So, on to our question of the day:
🔹 In lubricating motor oil designations such as SAE 10W-40, 10W-30 or 5W-30, what do the numbers mean?
And bonus question:
🔹 When comparing oils typically added to gasoline in a two-stroke engine and that used in a four-stroke engine, which has the higher viscosity index ?
👉 Reply on one of our social media below. We’ll post the solution right here next Sunday!
