10W30 vs. 10W40 The Ultimate Guide to Engine Oil Supremacy

The bottom line is the 10W-30 is fine unless you expect ambient temperatures to approach or exceed 30°C (86°F) when you'll be better off with the 10W-40. 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. Motor oil grades like 10W-30 and 10W-40 refer to the oil's viscosity, or how easily it flows, at different temperatures. Will you pick engine oil 10W-40 or 10W-30 for your car? Not every car driver know how to choose the best car engine oil for themselves. 10w30 and 10w40 are multi-grade oils this means that they can carry properties of different weight oils depending on the conditions. Pennzoil Motorcycle Premium Plus SAE 10W-40 · ATV/UTV Premium Plus SAE 10W ... What Is Motor Oil? Synthetic Oil vs. Synthetic Blend vs. Conventional Oil ... 10w-30 or 10w-40???? ... was wondering which oil to use for 4th gen 1996 vtec model. friend got cases of red line and i have to know which ones to ... The difference between 10W30 vs 10W40 viscosities is the thickness at hot temperatures. During the cold temperature, they flow at the same rate. Engine oils are divided into categories or grades based on their thickness level. The higher the grade of the oil, the thicker it is. 40 refers to it's viscosity. 10w40 would be thicker than 10w30. 40 viscosity will work just fine in the bike. It is the more popular than the 30 ...