iRyan

iTrader: (7)

my oil change is coming up in about 1500 miles so I think im oging to try the Royal Purple 5w-20 and see how it feels

Low Life

iTrader: (1)

glad I read that link on the first page. Just bought some mobile 1 0w-30

Sango

iTrader: (10)

I go Amsoil 0W-20 for my 11 IS. As for the 07 IS, I go with Amsoil or Mobile 1 0W-30.

chase350

iTrader: (2)

Royal purple don't waste your money.

RPF1IS250

IS250 5w-50 castrol syntec! no more cam gear noises *****es!! lol..

KillaIS250

iTrader: (1)

Gonna try Mobil 1 Synthetic 0w30 instead of 5w30 seeing as i've done some research today that's pointed me that way

nitrotang

iTrader: (2)

Let us know the results! I'm debating whether to go 0w-30 as well.

Denver

iTrader: (13)

so 0w30 is better for colder weather or just on cold start

minato

iTrader: (1)

0w20
canada.

nitrotang

iTrader: (2)

It's better for cold starts in cold weather. 0w-30 is more fluid than 5w-30 in colder temperatures.

KillaIS250

iTrader: (1)

Will do, although i'm not expecting to feel any difference lol

Sango

iTrader: (10)

Supposedly it helps with a bit of the fuel economy.

Been using the 0W's ever since they came out.

rookieIS

iTrader: (8)

i've changed my oil to Mobil-1 5w30 extended performance and noticed my cam gear is starting to grind when warmed up. I've had my IS250 for a year now and never had that issue until the recent switch to extended performance not sure why..

Shahryar

I've always wondered about switching to the Mobil 1 Synthetic variations. But ultimately I've always just stuck with regular Mobil 1 Synthetic

KillaIS250

iTrader: (1)

Switched over to 0W30. Didn't really notice a difference (like I expected) except for the fact that start up after the car has been sitting overnight seems to be smoother now then when i was running 5w30. I'll probably stick to 0w30 just for that