10-15-2014 03:21 PM
We are achieving lube oil consumptions of only 0.31 liter/hr (0.082 gal/hr) or 0.074 g/kWh (0.000121 lbs/bhp.hr) on the CAT G3616 running ECOSYN GE 4004 ester based synthetic gas engine oil.
09-26-2014 11:39 PM
The G3600 has a BSOC of 0.0008 lb/bhp-h for oil consumption.
To figure oil consumption in gallons use the following formula:
Oil Usage (gal/h) = Engine Power (bhp) x Load Factor x BSOC (lb/bhp-h) divided by 7.5
The 7.5 is the weight of one gallon of oil.
Oil Consumption as an Overall Indicator When the oil consumption of an engine has increased to three times the nominal oil
consumption due to normal wear, the engine should be considered for overhaul. The true measure of when to overhaul an engine is
performance as measured by output, fuel consumption, oil consumption, blow-by and compression. If an engine is still performing at
acceptable levels in all of these parameters, then it need not be overhauled. Therefore, to obtain minimum operating cost, it is helpful to
keep good records for the listed items.
This should help you figure out your oil consumption.
09-26-2014 03:32 PM
Can you tell me what the oil usage for a CAT 3616 should be? I am including information from our spec sheet.
GAS ENGINE SITE SPECIFIC TECHNICAL DATA
GAS COMPRESSION APPLICATION
Data generated by Gas Engine Rating Pro Version 4.05.00
Ref. Data Set DM8608-04-001, Printed 10Oct2013 Page 1 of 4
ENGINE SPEED (rpm): 1000 RATING STRATEGY: STANDARD
COMPRESSION RATIO: 9.2:1 FUEL SYSTEM: GAV
AFTERCOOLER TYPE: SCAC WITH AIR FUEL RATIO CONTROL
AFTERCOOLER WATER INLET (°F): 130
JACKET WATER OUTLET (°F): 190 FUEL: Sempra-Mississippi Hub-G3616
ASPIRATION: TA FUEL PRESSURE RANGE(psig): 42.8-47.0
COOLING SYSTEM: JW, OC+AC FUEL METHANE NUMBER: 94.6
CONTROL SYSTEM: CIS/ADEM3 FUEL LHV (Btu/scf): 905
EXHAUST MANIFOLD: DRY ALTITUDE(ft): 500
COMBUSTION: Low Emission MAXIMUM INLET AIR TEMPERATURE(°F): 100
NOx EMISSION LEVEL (g/bhp-hr NOx): 0.5 STANDARD RATED POWER: 4735 bhp@1000rpm