I'm trying to figure out what oil I should be using for a 3S-GTE in Australia with ~140,000km. The turbo is oil cooled by drip feed and the car does burn a bit of oil (the classic 90's toyota smell) but not enough that I've seen any great change on the dipstick over the last 6 months.
All I have on my engine lid is 10W-30 synthetic changed every 5000km, and the manual isn't the one that came with the car as the car is an import. This is a 26 year old recommendation and what I've gotten from a lot of googling is that oil was "different" back then. There are recommendations from 5W-20 to 15W-65...
I was thinking of using something like Penrite HPR 5W-40 synthetic as it is ~10 degrees warmer in Australia where I live on average than in tokyo (Was just trying to match climate data in Japan), but my concern is that using a thinner cold oil may burn faster. 10W-30 synthetics are not exactly easy to find these days either.
Without getting too much in to the hard science of it my question is along the lines of - should I be focusing on getting the same grade, or figuring out what the comparable grade is these days?
All I have on my engine lid is 10W-30 synthetic changed every 5000km, and the manual isn't the one that came with the car as the car is an import. This is a 26 year old recommendation and what I've gotten from a lot of googling is that oil was "different" back then. There are recommendations from 5W-20 to 15W-65...
I was thinking of using something like Penrite HPR 5W-40 synthetic as it is ~10 degrees warmer in Australia where I live on average than in tokyo (Was just trying to match climate data in Japan), but my concern is that using a thinner cold oil may burn faster. 10W-30 synthetics are not exactly easy to find these days either.
Without getting too much in to the hard science of it my question is along the lines of - should I be focusing on getting the same grade, or figuring out what the comparable grade is these days?