Difference between 5W-40 & 15W-40 Diesel Oils
; ;I am often asked what the difference is between 5w-40 and 15w-40 Diesel oils? ; ; AMSOIL 5W-40 and 15W-40 diesel oils are multi-grade oils, meaning they provide good performance in high and low temperatures. AMSOIL 5W-40 and 15W-40 both behave like SAE 40 oils in high temperatures; however, the 5W-40 is thinner than […]
NOACK VOLATILITY
Oil Data Sheets provide information about the quality of the lubricant. ; ;One of the key numbers to look at is the NOACK number. ; ;The Test is standardized as ASTM D5800. ; The NOACK number is the percentage of evaporation that happens in 1 hour when held at 250 degrees. ; It’s a good […]
Engine Oil Pour Point
;Pour point is another good indication of how pure the oil is. ; The lower the number the better! ; It proves that there is less contaminant in it that may impede the flow. ;The better the pour point, the better the protection at start up. ; ;Paraffin’s (waxes) are present in Conventional oils as […]
