Last updated on November 27th, 2022 at 0430 am “Which oil is best for my car’s engine?” is often asked on the internet. And it does not surprise me when people overlook the owner’s manual for the exact data you might have lost yours. Keeping the engine in good shape starts with changing its oil regularly. But what’s more important is to use the correct grade of oil to avoid any damage. And so, in this article, I shall explain what grade of engine oil should you use in your Honda Jazz. For the people who are in a hurry and can’t read the whole article, here is what works for nine out of ten cases. Which engine oil is best for honda jazz? The 5w30 full synthetic is the best engine oil for Honda Jazz. It covers the second widest range of ambient temperature for normal driving conditions as per the owner’s manual. It is thin to help with the cold start and gets thicker as the engine speed increases to keep the wear to a minimum. Honda Jazz engine oil recommendation Engine oil gradeWorking temperature range0w20-40 to 20°C0w30-40 to 35°C5w30-35 to 35°C10w30-30 to 35°C What does 5w30 mean in engine oil? Multigrade engine oil performs differently at different temperatures. The measuring variable is viscosity here. It is simply the resistance experienced by any fluid while flowing. The higher the viscosity, the higher difficulty it is for the fluid to flow. One interesting fact about viscosity is that it is inversely proportional to temperature. The lower the temperature, the higher the viscosity becomes and vice versa. So, if you put, let’s say, SAE 0W oil in your car’s engine, the engine may perform well in sub-zero temperatures, but as the ambient temperature increases, the engine oil lubrication film thins out giving very low protection to the internal parts against wear. The same goes for SAE 40-grade oil. It will perform well at higher ambient temperatures but won’t do any good at lower sub-zero territory. This is where the multigrade engine oil shines. It can change its viscosity to suit the varying temperature needs. A 5w30 multigrade oil will before well in the sub-zero temperature as well as at temperatures like 35°C. The 5’ before the w’ in 5w30 says that this oil can work well in subzero temperatures ranging from 0°C to -35°C. And the ’30’ after the W’ denotes that it can work well up to 35°C. For most of us, the range -35°C to 35°C works and so, the best engine oil for the masses for any engine is 5w30. Hot or cold, what is the average temperature of your region? Factors like driving style and region also affect your decision of choosing the right engine oil. If you have a knack for frequently driving your car at high speeds, then filling an engine oil with high-temperature tolerance is a good idea. Now, let’s talk about the regional aspect. Cold regions Colder regions usually have summer temperatures, not exceeding 10°C. Here, engine oil with a lower pre W’ value works well. For example, 0w20 and 0w30 multigrade synthetic engine oil work for these situations. For Polar regions, you should be looking at oils with weights 0w and 5w. Tropical regions Here, the average temperature stays around 18°C all around the year. It is pleasant, to say the least. Here, you can put SAE 30 engine oil and be done with it. But finding an SAE 30 oil might be tricky, so the most popular 5w30 oil also works as it covers the range of temperature SAE 30 oil works in. Hot regions Hotter regions have really difficult summers where the temperature exceeds 40°C. Rajasthan’s city of Bikaner experiences such summers. At this time you can easily use engine oil like SAE 40. But what happens when winters strike when the temperature falls below 10°C? You certainly would not want to use SAE 40 oil then. A good alternative is 5w30 which covers the operating temperature range for SAE 40 and more. What does Honda recommend? Going through the owner’s manual of the Honda Jazz, I came to know that Honda recommends four different grades of oil for their car. These grades are 0W-20, 0W-30, 5W-30, and 10W-30. But do you know what grade engine oil can be found at almost any store? The 5W30 covers almost all the other grades of engine oil that Honda recommends. Saurav is a mechanical engineer turned car nut. Just after graduation, he started flipping cars. And in the process he collected and published used cars-related data that helps potential buyers. You can follow him on Reddit.