Applications and Uses What does the '5w' in 5w 40 oil mean?

Jul 7, 2013 ... What is the best synthetic oil for an A4? ... I like Castro 5w-40, however people with oil consumption issues say that Mobil 0w-40 works better ... Most engine oils on the shelves today are referred to as “multigrades”. This simply means that the oil falls into 2 viscosity grades, such as 10w-40, 5w-30, ... Jan 8, 2024 ... If you are in a climate colder than 0°F, then switch to a different blend engine oil, like 5W40. If you don't use the right engine oil for ... Jun 20, 2013 ... ... 0W40 or 5W40 Diesel oil instead of 15W40 Diesel oil. Because the ... NOTE: The information here about oil pumps and oil drain-back, as ... May 13, 2016 ... There are people here happily using Rotella 5W-40 synthetic, even though it's slightly out of spec. Personally, I've probably put 100,000 ... Oil tends to thicken at low temperatures, so if you live in a cold region, your engine might benefit from a 5W viscosity oil. The second number (40) rates ... Mar 4, 2025 ... So, once they form, the only way to get it out of the engine is to let it wear out over about 30-40k ... 5W-30 snake oil er motor oil) and the ... Shell Rotella® T6 Full Synthetic 5W-40. Shell Rotella® T5 Synthetic Blend. 15W ... This OEM HDEO Oil Drain Interval Guide should be used for informational ... They gave me a Shell Helix Ultra 5W-40 oil. Its written 'For Petrol, diesel and CNG/LPG engines' and 'Fully Synthetic Motor oil' Specifications 'API SN/CF ACEA ... If it's a turbo, it uses 5W-30 synthetic oil. All other new Subarus use 0W-20 synthetic oil. *For informational purposed only. Subject to change. Always consult ...