Which oil Penrite SAE 30 or Penrite 15w50 for Honda GX390 in ?
Penrite SAE30
Penrite 15W50
I have been using Penrite SAE30 (mineral) in all of my stationary motors, but on the last oil change of the water pump (Honda GX390) i noted some flecks of brass/copper. Looking at Honda's manual there oil chart only covers a0w30 and straight SAE30 up to 40'C (104'F). I regularly have to run this pump at the limit of this oil chart and beyond; 35-44'C, but some days is only ~25'C (77'F). This pump runs for a minimum of 3 hours per run and during emergencies (Bushfires/wild fires) has cope with multiple runs per day. Is the 15W50 to 'thick' for the cooler days?
I'm looking at running the Penrite 10 TENTHS RACING 15W-50 (PAO ESTER) as i have ~4 liters leftover from a motorcycle which is now sold... (Prob overkill as 2200+ ZDDP package in a full synthetic)
Should i continue running the Penrite SAE30 (Mineral) or give the Penrite 15W50 full synthetic a go?
I know there are a lot of threads re running the 15W50 in these 'types' of engines (air-cooled) during hot condition and the fact B&S are now using this weight oil in commercial applications would add to the confidence of giving the Penrite 15W50 a go...
BUT, my concern is the Honda might have tighter tolerances and not like the heavier weight oil on the cooler days / start-up...
Regards,
Dewy.
Penrite SAE30
Penrite 15W50
I have been using Penrite SAE30 (mineral) in all of my stationary motors, but on the last oil change of the water pump (Honda GX390) i noted some flecks of brass/copper. Looking at Honda's manual there oil chart only covers a0w30 and straight SAE30 up to 40'C (104'F). I regularly have to run this pump at the limit of this oil chart and beyond; 35-44'C, but some days is only ~25'C (77'F). This pump runs for a minimum of 3 hours per run and during emergencies (Bushfires/wild fires) has cope with multiple runs per day. Is the 15W50 to 'thick' for the cooler days?
I'm looking at running the Penrite 10 TENTHS RACING 15W-50 (PAO ESTER) as i have ~4 liters leftover from a motorcycle which is now sold... (Prob overkill as 2200+ ZDDP package in a full synthetic)
Should i continue running the Penrite SAE30 (Mineral) or give the Penrite 15W50 full synthetic a go?
I know there are a lot of threads re running the 15W50 in these 'types' of engines (air-cooled) during hot condition and the fact B&S are now using this weight oil in commercial applications would add to the confidence of giving the Penrite 15W50 a go...
BUT, my concern is the Honda might have tighter tolerances and not like the heavier weight oil on the cooler days / start-up...
Regards,
Dewy.