Patman

Mobil 1 5w30 is around 10.0cst at 100c, or towards the bottom end of the 30wt range (which is 9.3 to 12.5)

Mobil 1 0w40 is around 14.2 to 14.4 cst at 100c.

As I mentioned, Castrol 0w30 is 12.2 cst, so it's nicely in the middle of those two, and based on my wear numbers in my last oil report I'd say it's the ideal viscosity, at least based on my climate and driving habits.

Rhode Island Red

iTrader: (2)

thanks, I will try the castrol (german) if I cannot find the 0W40 , for some reason it is difficult to find here

ods32

Just as a note to all:

I live in Michigan, Grand Rapids area, where there is an Autozone every 6 miles.

I didn't have any problem finding 6 qrts of GC 0W30.

I am not sure if anyone is still having problems finding it, but I just wanted to let people know it is available around here.

scifone

yea im having a hell of a time trying to find it here in kansas.

Mike K.

You know if a place like Thunder would start carrying this oil they would probably be able to sell alot of it. I can find it around here but I sometimes have to go to multiple autozones to avoid getting the yellow stuff.

hc_performance

iTrader: (4)

Patman,
If you lived in a little bit warmer climate than you do now would you still use the 0w30 or would you change to something else?

Danny2tek

iTrader: (1)

I was going to ask the same question. Down here in Miami its 90+ degrees almost year round, would 0w30 be safe to use down here? I currently use M1 10w30 but i've noticed after a good while of driving my psi tends to drop almost 10 psi at idle .

Patman

Most definitely! Keep in mind that this oil is actually thicker than most 10w30 oils, since it's almost a 0w40. So it's going to offer better protection in hot weather too compared to something like Mobil 1 10w30.
Don't let the 0w number scare you, this oil can handle the heat very well.

Patman

That sounds kinda scary, I think something else is going on there. Mine never is below 29psi at idle ever.

scifone

would by chance a bmw dealership or any other european car dealership have this oil?

Patman

It's possible, sometimes the oil from these dealers is rebadged European oil. Some BMW dealers sell the awesome 0w40 Castrol Formula R as their own oil for instance.

Danny2tek

iTrader: (1)

Ops I typed it wrong I meant to say when it warms up it drops an additional 10 psi from 40 psi at idle (30 psi)

KelloggSS

Patman, would you recommend the german castrol 0-30 in vehicles such as a 1998 jeep wrangler with the inline 6 with rougly 50k miles?

How about a toyota avalon with the 3.0, rougly 100k miles?

Neither have any leaks and run very well.

Thank you. Just trying to see if you recommend this oil only for newer engines or for use on a higher mileage engine.

Patman

It will work well in higher mileage engines too, I ran it in my 95 Formula which had over 100k on it and it worked out very well.

For your Jeep though, those engines tend to like something a little bit thicker. For that engine I'd recommend the Mobil 1 5w40 Truck and SUV. Jeep owners have seen good results with this oil and other oils of this type. Another good choice that isn't as costly would be Rotella synthetic 5w40, which some people have found for $13 a gallon at their local Walmart in the US.

KelloggSS

Thank you very much!

Do you happen to have any experience or advice on the use of a K&N oil filter vs a Mobil?

P Mack

iTrader: (6)

I don't like the K&N's cause the first and only one I ever got crossthreaded on me. Supertech from now on for me.

Danny2tek

iTrader: (1)

Damn I lucked out I just stoped by the local Autozone to take a look and the entire shelf of 0w30 has the MADE IN GERMANY stamp on them.

Patman

I'm a big fan of the K&N oil filters, I've been using them exclusively on my vehicles for a couple of years now. They outflow the Mobil 1 oil filters by a significant amount.