What engine oil should I use in hot temperatures (between 40-50 celsuis)
06-03-17, 04:00 AM
#1
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What engine oil should I use in hot temperatures (between 40-50 celsuis)
My car is a 2007 IS 300 GCC spec'd. The same engine in the IS 350 with slightly smaller bore and with a port injection instead of direct injection.
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Klymbort (06-05-17)
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Klymbort (06-05-17)
06-04-17, 05:49 AM
#5
I don't see any logic in running thicker oil than is recommended, certainly not a 50 weight. Thicker oil increases friction and temperatures. Thinner oil will run cooler. However in a racing environment you might need thicker oil to maintain film strength at higher temps. But daily driving around in high temps doesn't warrant oil thicker than recommended.
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Klymbort (06-05-17)
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Klymbort (06-05-17)
06-05-17, 07:35 AM
#8
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06-05-17, 07:43 AM
#9
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I don't see any logic in running thicker oil than is recommended, certainly not a 50 weight. Thicker oil increases friction and temperatures. Thinner oil will run cooler. However in a racing environment you might need thicker oil to maintain film strength at higher temps. But daily driving around in high temps doesn't warrant oil thicker than recommended.
06-05-17, 12:31 PM
#12
Summer temperatures over 100F are not uncommon in the southwest of the US. Moreover, engine operating temperatures are controlled by the water pump, thermostat and electric fans so shouldn't be that different in Oman. I'd just use the recommended oil weight in the owners manual (which is probably 0W20 or 5W20).
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Klymbort (06-05-17)
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06-05-17, 02:43 PM
#14
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06-05-17, 02:47 PM
#15
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Summer temperatures over 100F are not uncommon in the southwest of the US. Moreover, engine operating temperatures are controlled by the water pump, thermostat and electric fans so shouldn't be that different in Oman. I'd just use the recommended oil weight in the owners manual (which is probably 0W20 or 5W20).