Empowering Drivers 5W30 vs. 5W40 - The Ultimate Guide to Motor Oil Viscosity

0w40 vs 5w40. Learn the key differences between 0W40 and 5W40 engine oil. Find out which oil viscosity grade is better for cold weather ... Which is thicker? 5W40 or 5W30? Let us know in the comments section below! Follow us on Facebook and Instagram for the latest promotions ... Generally speaking a 5w-40 is more expensive oil than a 5w-30 as it has to not thin out at the higher end of the temp. ranges. Personally I run ... 5w40 is thicker/more viscous, and only when warm. So 5w40 is worse fuel economy etc. It's not a huge difference though. We work side-by-side with workshops to produce high quality engine oils, lubricants and chemicals for passenger cars and commercial vehicles. The S2000 user's manual has a temperature range for oils... basically 10W-30 is recommended for "normal" climates, while 5W-30 is recommended ... Car & Bike Oils, Fluids & Parts/Spares all at Great Prices. Find Products for Your Vehicle or Get FREE Expert Advice for Unique/Track Vehicles. ... 5w-30 5w-40 ... Even using a heavy duty diesel oil, ie Mobil 1 Turbo Diesel Truck 5w40 (or for slightly less money, Shell Rotella T-synthetic 5w-40) will be ... Many new vehicles are marked to use 5W-20 oil (Honda, Ford, and more recently Toyota) which is not much thinner than a 30 weight oil. My indy recommended moving to 5w-40 as he said it helps with oil consumption on these cars and also that the slightly heavier weight will help reduce wear.