Re: '90 Coupe Q. Blue Smoke, Help!

[Allan Jones <ampj@tiac.net>]

>  . . . . . . . . . use 5W-30 engine oils to aid in low
> temperature starting and for improved fuel economy."
> _hrysler in this manual suggests that 5W-30 should
> be used between -20F & 100F ( -29c to 38c ).
> Audi on the other hand suggests that 5W-30 be used for
> a range of -20F to 20F ( -29c to -10c ) in the owners manual
> of my '86 5KTQ and that for warmer climates something
> along the lines of a 15W-40 to a 20W-50 is more suitable.

	What are lister's opinions of the new Mobile 1 0w-30? Is this a
one-weight, good-for-all wonder oil? I hate to re-feed the oil thread,
but I just read an ad for the new "Extreme Formula 0w-30" and have to
ask for opinions from the list, which is definitely my single best,
interactive source of both subjective and objective info.
	Is this a breakthrough? ...the first 0w-x oil? ...a singular
replacement oil for a 4 season climate? ...a scam?