The Ultimate Guide to 10W30 vs 10W40 Choosing the Best Engine Oil

Researching which oil I'm going to use on my '12 1KRR, and page 138 of the manual says 10W-30 JASO MA, but goes on to list Honda GN4.. Well, which is it? GN4 is Very generally speaking, the first number indicates the oil viscosity in cold weather. You can remember this because of the 'W', for winter. The ... Honda recommend that the CBF1000 uses 10W30, known as the viscosity numbers. The “W” stands for “winter”, which relates to how the oil will flow when cold. A 10W30 is a 10 weight when cold and a 30 weight when hot, but a hot 30 weight is still a hell of a lot thinner than a cold 10 weight. Tech / General Engine - 10W30 vs 10w40 engine oil - Any of you fellows using 10W40 oil in your 395 ci as opposed to 10W30 as recommended in ... Dive into the world of engine oils with our informative guide on the key differences between 10W30 and 10W40. In this video, we unravel the ... In the 10W-40 engine oil, the 10W (W = winter) simply mean the oil must have certain viscosity or "thickness" flowing at low temperature. The lower the "W" ... First service on mine 8 yrs ago, I went to a Honda dealer in OH and told them what I had and needed the stuff for an oil change. They gave me a ... Keep using what you've been using, it's a great oil, the 10w-40 is perfect for your temperature range and IMO better suited for the transmission ... First off lets look at what 10W30 & 10W40 means. The first number, they are both 10 weight oils, no difference when cold. The second number, 30 ...