Caterham makes a perfectly valid point in that any oil is too thick at startup at any ambient temperature you'll find on this planet.
Then I must ask--what
is the point? This suggests that any oil is too thick at start-up so the miniscule differences between any of them become immeasurable and irrelevant. I know that we love splitting hairs on the site, but sometimes it seems pointless to do so--particularly in this instance where
any oil would suffice.
Just my
I talked to some engine builders about this a few weeks ago.Their comment basically was,you get oil pressure instantly,worrying about the slightest thickness differences between oils is a waste of time - period.The body and frame,etc will be long gone before having to worry about such a small difference.
Greg. You can't be serious. If your silverado showed any difference in startability then you've got battery problems or something.
And you've got a 0w-20 in your accord and you truly convinced yourself that that accord made strange noises due to your ambient temps.
I've heard it all now,and I mean everything.
My charger starts everyday,with 5w-20 at ambient temps than get colder than -20 without windchill. My girls windstar has 5w-20 in the same climate. My work van has 5w30 in it with those same ambient temps and I can tell you with absolute honestly that they sound the exact same starting with ambient temps that low as they do in the summer.
And cranking speed is absolutely unaffected as well.
Only once ambient temps dip below -25c do any of my vehicles show any signs of slower cranking and maybe some funny top end noises and all of my vehicles are running a 5w-XX.
So if you're experiencing funny sounds and slow cranking in Florida then I suggest taking your vehicles into an expert and have them fix what's broken,because something is broken if what your saying is true.
I've got a 1999 silverado Z71 with a 5.3. That truck will start up until -40c creeps in,with good ole Pennzoil Conventional and sounds exactly the same when being started at 30c in the summer and -25 in the winter,so if your truck is exhibiting signs as you've described then I suggest taking it in too.
No I am being serious, both vehicles cranked over slow and the Accord made some nice clacking noises for a couple seconds. Its no biggie because it does not happen often. I did have some concerns about my battery though, I took it in to autozone and they tested it and said it was a little discharged but not enough to have any problems.