Unveiling the Mystery 10w30 vs. 10w40 Oil Explained

Motor oil grades like 10W-30 and 10W-40 refer to the oil's viscosity, or how easily it flows, at different temperatures. 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" ... 10W30 is a thinner oil and flows more easily at lower temperatures than 10W40. This makes it a better choice for colder climates. 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 ... Pro Honda 10W30 MB Scooter Engine Oil. Grade : API SL Special Additives for ... Pro Honda Fully Synthetic Oil is developed for High End Motorcycles (10W30 MA). 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 ... In other words, a lubricant with SAE 5W-30 will behave better when cold than a lubricant with SAE 10W-40. In contrast, oils with a higher SAE ... I picked up the wrong Honda oil for my 1000-5. I got 10w40 and should have 10w30 by mistake. Dealer is 45 mins away and only source of 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 In the winter, the oil will not get quite as hot as it would in the summer (unless u live in the desert, cali or florida where its always warm), ...