This is very outdated and Im sure doesn't apply to current oils. 20 Years ago I ran Chevron Delo 400, Mobil Delvac 1300 and Shell Rotella T 15W-40 in a 1999 Cat 3406E in a dedicated route. With 30,000 mi drains (Max allowed with UOA) and 2 gallons of add oil (Roughly 20% of capacity) the TBN was at 50% of new and viscosity was slightly below For 4-stroke engines Castrol POWER1 4T 10W with Power Release Technology™ optimises friction which in return provides motorcycle enthusiasts with a superior acceleration at the twist of the throttle. Castrol POWER1 4T 15W-20W with Power Sustain Technology™ manages heat and friction in bikes, ensuring continuous power delivery through its According to grading norms explained previously, the numbers of a grade denote oil viscosity. Thus, 15W-50 has 15 grade in winter and 50 grade in the warm, while 20W-50 has 20 grade in winter and 50 grade in warmer temperatures. Since higher grade denotes higher viscosity, 20W-50 is thicker or more viscous than 15W-50 grade oil. What Is the Difference Between 15w40 and 10w30 Oil? Viscosity. There are benefits to using 15w40 motor oil. In addition, it shields your engine from damage caused by severe Fuel Economy. The soot, acid, and wear-prevention additives in your engine’s base oil are what keep it running smoothly. Hot The Differences Between 10w40 & 15w50 Motorcycle Oil. 10w40 grade motorcycle oil will hold its performance right up to 40 degrees Celsius (104 degrees Fahrenheit), while the 15w50 grade motorcycle oil will hold its performance up to 50 degrees Celsius (122 degrees Fahrenheit). The number before the W tells you how the oil will flow in cold So the 100C viscosity of the W part should give you an indication on how robust the oil is under high temp. I suspect that the thicker the base oil, the higher the high-sheer-rate viscosity. So I am wondering if there is a difference between 15w and 20w in 100C viscosity of the base oil and/or in HT/HS. Or maybe the difference shows up some In pumping temperatures, 0W oils can take the temperature down to -35 degree Celsius. In 10w motor oils, it has a minimum of 9.3 and 12.5 and a maximum of 16.3 respectively. When the temperature is hotter outside, 0w40 would be the best motor oil to go for. Location. It is crucial to consider where you use the vehicle as both 0W20 and 5W20 motor oils fall within almost the same temperature spectrum. 0W-20 synthetic oil’s range is between -40°C to 20°C while a 5W20 (5W20 synthetic oil) is from -35°C to 20°C. Knowing these details means two things: S5zbH.