Quote:
Originally Posted by TheMAN
your engine temperatures never goes lower than the thermostat temps... it can only go higher, and that depends on how well your radiator and fans work... but in any case, the 5W30 will be fine in the 3, while the 5W40 will be fine in your BA
remember, you want to go as thin as you can without:
-causing oil consumption
-causing oil to shear "out of grade" to a thinner oil
-causing oil to be diluted from fuel
-causing additional wear
-causing oil to overheat and turn to sludge
those oils I mentioned should NOT cause any of those problems... going thicker than that is just silly and cause inefficiency in your motor
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thanks!
both cars get 7.5L per 100km fuel comsumption, which is better than OEM specs when new. so not effecting engine preformance me thinkz?
main concern i have is previously i use Castrol GTX 15W40 in my BP/BA 323 , and it had oil consumption of 1000ml per track day. granted it is a crap miniral oil. hence i went the better Penrite HPR15 15W60, over 7500km + trackdays, it loses 500ml of oil. HPR15 was semi-synthetic at the time.
the 3s oil goes in maroon semi clear colour, comes out the same. 12,000km changes no different. this car rarely sees 4000rpm, and has short and long trips.