Synthetic Oil and 4x4 differential fluid: Questions

wingnuts · **Posted:** Thu Apr 02, 2009 6:19 pm

Mike08Liberty wrote:

wingnuts wrote:

Mike08Liberty wrote:

Here is one example ... We have a 2000 Lexus LX470 that we've owned since day one. The truck currently has over 250,000 miles on it. We change the oil every 12-15K using Mobil 1 and a Mobil 1 oil filter. There are NO engine knocks, pings or any other noises coming from it. There is no smoke coming from the exhaust or engine. Even in the cold after its been sitting for a few days it stars right up. It runs and pulls just as hard as it did on day one.

From experience ... I'll stick with Mobil 1 every 12/15k

OK i just have to point this out, but you live in FL, how cold can it be? and the coldness of oil has nothing to do with it starting, it is just the thicker the oil is the longer you are running an engine with limited protection

The Lexus is in NY so yes it gets very cold. Also I'm in north Florida and this past winter it got down to single digits. We had a really cold winter. Yes the cold has some to do with it starting. When the temp drops to 0 or below and the engine hasn't been turned over in a few days the oil will thickin and in an older engine that already has wear and tear startup tends to be a little difficult. There wasn't any issues with the Mobil 1.

I think you missed my point, take all the oil out of an engine and start it, it has nothing to do with the starting, that is all of everything else and an older engine that is more wore out has all the clearnaces opened, less compression, less sealing, blah blah blah blah

vmf · **Posted:** Sat Apr 04, 2009 8:46 pm

i changed my oil yesterday to mobil 1 synthetic 5w-20 oil and may b its me but i think the tapping became lil more loud. especially on the cold engine. do you guys have this?

vmf · **Posted:** Sat Apr 04, 2009 8:52 pm

tools113 wrote:

they are also not using the standard Moldil 1 Synthetic. All the cars that you listed use the extended formula Mobil 1. which is far better than the standard.

its only 50 cents per quart better:)
btw, if i go to a dealer for a warranty repair, how do i prove to him that i do change oil every 6k or less if i do my own oil changes?

Diggerfreek · **Posted:** Sat Apr 04, 2009 10:31 pm