Mike S.

Anybody tried it? Mobil 1 claims it can be used anywhere 5w-30 is called for.

Mike S.

Coprolite

I have it in right now. It specs out a little thicker than PP 5w-30. In the first few tanks since the change, I have seen about a 1 mpg drop in economy. I am not making any judgements until the full interval is complete.

AllentownG37

I'm running 0w-40 Mobile 1 right now. I've noticed that the car's temperature actually seems to run a little cooler with it than it did with 5w-30. Though, that's just measuring by eye on the OEM temp. gauge on the cluster. Other than that, car runs great, no real change in MPG that I've noticed. HTH.

superchargedg

iTrader: (1)

Ive been running 0w40 for years now and i am Twin Turbo'd and i wish i could find my last oil report as it was just ****.

Itchytoe

0-30? 5-30? 10-30? 0-40? 5-40? 10-40?

They're all so close to being the same thing it won't make a difference if you don't push the car hard. Getting technical and talking about theoretical gains and losses is where one gets set ahead of the pack. In the real world, find the one that's got the best addative package and causes the last wear in your vehicle.

speedracer g37

iTrader: (4)

My experience with mobile 1 tells me it's garbage. Everything I've ever put it in runs rough and loud and drops mileage around 5 percent. Pp and pu has been great for everything I've put it in from my g, my BMW and my explorer.

SwissCheeseHead

iTrader: (6)

I'd stick with what is recommended oil weight wise. Brand wise if you don't like mobile 1 then don't use it. I've been using it in my vehicles for years and love it. To each his own.

Steveo47

iTrader: (8)

id stay away from both mobil 1 and Royal purple. I used 5w-40 Rotella T6 on my sti. Different car (duh) but it works great. Like said above 0w vs 5w wouldnt make much difference. Youll simply get more oil flow in cold temps. Use whatever you want imo!

mtrsprt

0W-30 is far superior when starting engines in sub 32*F weather or any cold start for that matter. 0W-30 can only be better for colder climates, because it flows better at lower temperatures than 5W-30. Cold start-up is the hardest on your engine, and oil flows less when cold.

Amsoil Signature Series 0W-30 is hard to beat....

Coprolite

...if you weren't paranoid about voiding the warranty. I do realize that you would have to be quite paranoid, but it hasn't been certified.

I am going PU 5w30 next with the spectacularly low NOACK of GTL.

mtrsprt

Amsoil will not void ANY factory warranty.

Using AMSOIL synthetic motor oil has no affect on vehicle warranties. A federal law called the Magnuson-Moss Act (1975) prevents original equipment manufacturers from putting conditions on vehicle warranties attached to any product or service identified by brand, trade or corporate name, unless the manufacturer provides that product or service free of charge. This means consumers have the freedom to use aftermarket products of their choice without fear of losing the original limited or implied vehicle warranty.

Coprolite

Unfortunately, that is incorrect. If they said Nissan 5w30 is required, then it would be free. Stating that you must use oils certified to meet certain standards does not bring this (Ma
-M)into effect.

mtrsprt

It is NOT incorrect. Do some research, and stop assuming, and listening what the kids here are saying.

When is the last time YOU heard of a warranty claim denial because of the lubrication chosen? I never have, and I have been in the business for over 25 years.

As soon as anyone brings this act up during a major warranty claim on engine damage, dealers frown away with no questions asked.

Magnuson

Coprolite

So if I ran maple syrup in the engine and it failed, it would still be covered?

"Select only engine oils that meet the American
Petroleum Institute (API) certification or International
Lubricant Standardization and Approval
Committee (ILSAC) certification and SAE viscosity
standard. These oils have the API certification
mark on the front of the container. Oils
which do not have the specified quality label
should not be used as they could cause engine
damage.....Damage to engines caused by
improper maintenance or use of incorrect oil
and filter quality and/or viscosity is not covered
by the new INFINITI vehicle limited warranties."

Technically Amsoil would void the warranty. I haven't claimed that the warranty wouldn't be honored, as Amsoil is arguably a fine oil, but it is not API certified. There is a big difference of requiring a certain type of fluid that is certified vs a specific brand...

Coprolite

An additional tidbit...the warranty wouldn't matter:

"AMSOIL offers a warranty that covers the cost of repair or replacement of a proven mechanically sound engine damaged as a result of using AMSOIL synthetic motor oil."

Note that I used paranoid in the first post. If an uncertified oil is used, there could be a lot of dispute over the cause...blindly using any oil that is not certified could void warranties on items such as catalytic converters.