10W30 vs. 10W40 A Comprehensive Guide to Optimal Engine Lubrication

The higher the number after the w, the thicker the oil at high temperatures. It can be appropriate to change to 10w-40 if you are in a hotter ... 10w40 oil is too thick for these engines... if it were ok then MB would recommend it. 5w30 full synthetic is fine... it is in the manual as ok. 10W40 has ten more W's than 10W30. There's a formula for it, and you can buy just straight W at any auto parts store, if you have a crankcase ... 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 ... 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 If your engine specifies 10W30, using 10W40 won't present any changes. It's just a little thicker after the engine has warmed up, and will ... ... 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 ... Synthetic vs. Conventional · Exclusive Distribution · Performance Testing · Our Leadership · P.C. Program · AMSOIL Warranty · The Inside Track. Customer Service. On the 94 Escort it is 5-30 winter and summer. In the 98 Explorer it is 5-30. In the 04 Explorer Ford specified 5-20. So I use that year round. The main difference between the Castrol Edge 10W-30 and Castrol MAGNATEC 10W-40 lies in their high-temperature viscosity and their targeted use.