10W30 vs. 10W40 Unlocking the Secrets to Unmatched Engine Protection

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 ... Hello. I have a mildly built 350 in a 76 Monte Carlo. I put 10w30 in instead of 10w40. Will this hurt my engine? MOTUL 3000 10W-30 4T. Street & road bikes, trails, off-road... MOTUL 3000 10W-40 4T. MOTUL 3000 is a mineral 4T motorcycle motor oil... MOTUL 300V FACTORY ... 10w30 is a more all year oil for a very broad range of temperatures. It has more protection for lower temperatures than 10w40 at the cost of being not as good ... 10W30 and 10W40 are made from the same base (assuming we are comparing oils from one manufacturer) with different amounts or types of polymers ( ... ... 10W-30 (51). 10W-40 (26). 10W-60 (3). 15W-40 (25). 15W-50 (8). 10w40 is what Honda recommends for the most part though 10w30 is used in cooler climates as per Honda recommendation. 20w50 can be used while ... As others have said you can use both grades in any Honda bike however if you run 10-30 you may see better mpg since 10-40 is a slightly heaver ... ... 10W-30 API SL. FULLY SYNTHETIC 0W-20 API SN. SERVICE CENTRE & HIGHSTREET. Availability: 3L & 3.5L 3L 3.5L. Excellent wear protection with enhanced antioxidant ... 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 ...