Originally Posted By: 1JZ_E46
Originally Posted By: Garak
Possibly, or they cut and pasted the chart out of somewhere strange. Given what I've seen in some of these manuals, I wouldn't venture a guess.
Perhaps, but I wouldn’t want to chance it with this car. Engine is not cheap, and it’s under a lot of pressure. Plenty of good 5W-40 options.
Well sure you can make decisions based on things other than technical reasons but what would you be "chancing"? In fact the chart (which again is "recommended") does mention 0W-30 as being acceptable so by the same token as long as a 40 grade is recommended the winter rating is of no consequence whatsoever.
I guess I have a hard time agreeing that the OP should go online to buy some oil for which there is no evidence it is in any way better or more suitable than one you can get at every Walmart for a very low price, and carries enough certifications to make it suitable for nearly every engine on the planet. If there was a valid technical reason for doing so I'd have no problem. But I challenge anyone to show how the other product is superior to say Castrol 0W-40, or make a concise argument how it would violate a warranty based on the owner's manual information the OP posted in his first post.
But as I always seem to end up saying, maybe that's just me.