We'd recommend looking also at oils by category (such as Spindle, Way, Gear, and Hydraulic oils) and consider between synthetic and conventional oils. Translating the viscosity is a good first step and can be sufficient for most general-purpose applications. To get the kinematic viscosity (in centiStokes), just divide by the specific gravity of the fluid. Oil Viscosity Chart Compare, Choose, and Substitute Industrial Oil based on Viscosity Oil Viscosity Chart: Compare, Choose, and Subsitute Industrial Oils Comparing Viscosity and Choosing the Right Industrial Oil Viscosity is a measure of how thick an oil is, and is essential for proper machine lubrication. The SAE 20W-60 viscosity allows excellent oil flow into the engine at start-up and fast. This is a good approximation for most oils, but will lead to a small error when converting between ISO/AGMA and SAE for high Viscosity Index oils. For race prepared engines operating over a wide range of rpm and. Antiwear and oxidation-resistant additives make it work well with hydraulic systems, while moly gives it the high load-carrying ability required by way systems. The attached lubricating oil pumps are driven directly by the engines and. The chart assumes the oil has a Viscosity Index of 95. Use this oil in machines that require the same lubricant for both their hydraulic and way systems. This chart is essentially a graph of oil viscosity against percentage. Equivalent viscosities for 100 & 210F are shown SAE 90 to 250 and 20 to 50 specified at 100C.
#DRIVEN OIL VISCOSITY CHART ISO#
ISO are specified at 40C AGMA are specified at 40C SAE 75w, 80w, 85, 5w, & 10w specified at low temperature. Oil gets thinner according to its Viscosity Index, and the chart is calculated with a specific Viscosity Index (VI 95 default) Viscosity Charts Viscosities can be related horizontally only Viscosities based on 96 VI single grade oils. ISO VG measures oil at 40✬ and a given range to +/-10% of their stated value, so ISO VG 100 oil will have a viscosity between 90 and 100 cSt at 40✬.ĪGMA has redefined its grades to align with ISO standards, so they line up exactly. Oils grades that are on the same horizontal line (with the correct Viscosity Index) on the chart are equivalent. Oils grades that are on the same horizontal line (with the correct Viscosity Index) on the chart are equivalent. For example, a lubricant with an ISO grade of 32 has a viscosity within the range of 28.8-35.2, the midpoint of which is 32.Several organizations (ISO, SAE, AGMA) have created competing standards to define oil viscosity ranges, but most of them mean the same thing. Each ISO viscosity grade number corresponds to the mid-point of a viscosity range expressed in centistokes(cSt) at 40☌. Each non-W viscosity grade has a range of viscosities at 100o C which it must fall within. Many petroleum products are graded according to the ISO Viscosity Classification System, approved by the international standards organization (ISO). ISO VG measures oil at 40✬ and a given range to +/-10 of their stated value, so ISO VG 100 oil will have a viscosity between 90 and 100 cSt at 40✬. Were all familiar with multi-grade diesel engine oils. (RockShox oil is alledgedly repackaged Torco but with the correct weight on the label.) Click to expand. KINEMATIC VISCOSITY, CENTISTOKES TEMPERATURE, DEGREES CELSIUS-20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 OIL VISCOSITY / TEMPERATURE CHART Lines shown indicate oils ISO grade Viscosity Index of 100. For some reason Torco seems to label their oil at double the weight it really is. SAE 90 to 250 and 20 to 50 specified at 100☌. The viscosity index reflects how well an oil retains its viscosity at various temperatures, so the higher the index the better. Viscosities based on 96 VI single grade oils.Įquivalent viscosities for 100° & 210☏ are shown Viscosities can be related horizontally only
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