10W30 vs. 10W40 The Ultimate Showdown for Enhanced Engine Protection

The difference between 10W30 vs 10W40 viscosities is the thickness at hot temperatures. During the cold temperature, they flow at the same rate. 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 ... The main difference is that 10W40 oil is thicker than 10W30 oil at higher temperatures. Both have almost the same characteristics – the only difference is the ... 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). 10w-30 vs. 10w-40 in 8.1L ; 10w-30 vs. 10w-40 in 8.1L. K · K · Wed, Sep 29, 2004 12:18 AM ; D · "Doc" · Wed, Sep 29, 2004 2: ; Z · zonie · Wed, Sep 29, 2004 ... 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. 10W30 and 10w40 are very similar oils. Both oils are flexible, multigrade oils that perform well in different temperature ranges. The Owner's manual tells us to use 10W-30 oil, what would happen if one used 10-40? will this do any harm and why? 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 ... Not so much for the heat reasons, but because the oil brand I purchase is only available in 10w40 weight. So short answer, there is no ...