i've never been able to get a clear answer - can someone recommend a weight for winter use? i use the oe weight currently. amsoil 5w30. i'm in seattle...it gets around 32 degrees but we're expecting colder climates.

thoughts?

thanks guys,
eric

 

Don't use a different oil because it's colder outside. There's no reason to. Just stick with the 5w-30.

 

It's all in the owners manual, infiniti recommends specific oil weights for certain temperature ranges.... and it looks like they say 5w30 for any given temp...LOL!!

 

really? lol hm...perfect

thanks fellas!

 

Yep, the W in your oil weight stands for "winter" so you're covered 5W-30

 

Opposite extreme here, but about all I would change is run a 10W-30 in a Dallas summer, June-Sept. But as mikelr, stick to the "book" and you can't go wrong.

 

I'd run a 0W-30 in freezing conditions.

 

I'd run a 5W-30 and keep my warranty intact.

 

Thats what i use... year round,,, but especially for the high rev up on a cold start,, want that " 0 " in front of the 30

 

You won't lose any warranty fact is 0W-30 is much better for your engine when cold starting... I have the dealer pour in Amsoil SSO 0W-30 every oil change...

 

Wouldn't you "theoretically" have more residual oil sticking to the parts w/ a heavier oil so you'd have better protection at startup? Just curious

 

No actually at start-up oil is already way too thick.

Read this: Motor Oil 101 - Bob is the Oil Guy

 

Okay wow, I read the whole thing, there goes an hour! Great info!

So should we all be running run synthetic 0W-30 in our G's? I'm a 5W-30 PU fan myself.

 

Yes and PU is a great oil same with PP. That forum is a great community and reference site for all things oil.

 

that was a great read - albeit i skimmed through it (i have a midterm tomorrow ). i've heard the same saying around from time to time. never really knew what to believe. what about on longer drives though? my gearing revs me a tad bit higher than the average g w/ 3.69's (~300 rpms higher). hm...