oil choices??? pls help

[logicmobile]

im currently using 5w-30 synthetic oil and im wondering if 0w30 is safe to use on stock vq35de with 57000 miles on it???

[soul_hfk]

whats wrong wit 5-30

[Tampa G35 Sedan 6MT]

are you asking about that new mobil 1 green cap oil.... NOT FOR THE G!

I asked the same thing about a month ago! Stick to 5w-30 in the G....

I use mobil1 exteneded preformance! I love it and so does the G!

DJ

[Jacko3]

Just switched ot the extended performance Mobil 1 synthetic. I am going to wait and see what the outcome will be.

[G_whizz]

Most everyone goes synthetic.

[Tampa G35 Sedan 6MT]

Didn't the motor sound smoother?

[Jacko3]

I don't know why you want to switch to 0-30 grade of oil. 0-30 will work--it only means that the oil does not have any cold start characteristics, which could possibly wear down your engine over time when starting in even a remotely cold area. t of the oil means that the oil will behave or flow the same way in a temperate area (5W) as it would in a warm area ()-30). 0-30 grade is only good for warm areas---this means only summer like temperature use. So think about this before buying the oil.

[Jacko3]

I think it is smoother, but I will wait until 2,000 miles to determine if it is really smoother or if the Mobil M-108 filter is really the cazuse of the smoothness.

But with test pipes, how would I know what is smooth or not--very hard to tell at this point? To a man with a hammer, everything else looks like a nail.

[logicmobile]

hhmmm well i had castrol synthec full synthetic..but yes its the green cap, i was gonna go but i just stay on 5w-30 for safe side , thats why i ask pros like you guys...well i live in San Diego not that cold and not very hot, and usually drive at afternoon most...well i guess i;ll just stay on 5w30 weight , thanx guyz

[notalk]

I don't know why you want to switch to 0-30 grade of oil. 0-30 will work--it only means that the oil does not have any cold start characteristics, which could possibly wear down your engine over time when starting in even a remotely cold area. t of the oil means that the oil will behave or flow the same way in a temperate area (5W) as it would in a warm area ()-30). 0-30 grade is only good for warm areas---this means only summer like temperature use. So think about this before buying the oil.

Actually, what it means is the 0W-30 will flow a little easier or freer at start up than a 5W-30. Oil engineers will tell you it is always safe to go to a lower number but never to a higher number (because the journals and passages are not sized for a higher number). Many people use 0W instead of 5W to provide easier start-ups.

[BrandAidDesignG35]

Mobil 1 syn 5w30 in the GCastrol syntec 10w 30 in the Alty

I've noticed the synthetic oil is a big improvement, I can't speak to the extended performance mobil 1, cause I have no need to switch! I do slack when it comes to the altima sometimes, I just changed both cars when the G hit 5000 km

The service guys at Infiniti said Mob1 5w30 was recommended

[Sentientbydesign]

I don't know why you want to switch to 0-30 grade of oil. 0-30 will work--it only means that the oil does not have any cold start characteristics, which could possibly wear down your engine over time when starting in even a remotely cold area. t of the oil means that the oil will behave or flow the same way in a temperate area (5W) as it would in a warm area ()-30). 0-30 grade is only good for warm areas---this means only summer like temperature use. So think about this before buying the oil.

Jacko,

This information is completely opposite of the truth. The Xw in 0w, 5w,10w refers to the pour point of the oil. This means that the oil can be much colder and still flow easily.

Usually, you will see 0w and 5w on Fully Synthetic and Synthetic blends. This is because conventional oil has wax in it and requires significant modification and additives to be able to both pour at a low temperature and have it's specific SAE viscousity (the second number in the oil grade).

One of the biggest issues I SEE, is oil shear or viscousity degradation with use in conventional oils. You're asking mineral oil to flow easily at very low temperatures and to provide film strength at high pressure, high temperature, high stress points.

My general BELIEF is that a conventional oil with a low pour point is more likely to shear and suffer viscousity degradation than the same multi-weight synthetic. The reason why is that synthetics do no contain waxes and flow easily in high or low heat situations. As such, they are designed to have a wide working working temperature range.

[Jacko3]

The Xw in 0w, 5w,10w refers to the pour point of the oil. This means that the oil can be much colder and still flow easily.

.

Nate:

We are actually saying the same thing but in different ways. I agree with you. But also remeber that the synthetic oil being made by Mobil is not entirely pure synthetic--Stage 4 distillates, which means it does contain very low amounts of wax. Most of what they are now calling synthetic oils are stage 3 distillates.

[Sentientbydesign]

The issue is with your last comment saying that 0w-30 is for warmer climates. This is not true. 0w-30 means it has a lower temperature pour point and is suitable for areas with colder starting temperatures.

[Jacko3]

Nate:

I don't remember ever seeing a 0W - 30. Maybe an SAE 30. Does anyone sell a 0W-30 grade of oil? Anyways, thanks for the clarification. I do know that SE30 alone are used in hot climates. I beleive I mixed up 0W-30 with SAE 30.

[Sentientbydesign]

Mobil 1, Lucas, Pennzoil, Amsoil...

[logicmobile]

this is the one i was refering awhile ago...so theres 2 different types of explanation on what i have read in this particular oil weight...but i will keep reading from all of you to found out what is really right and wrong for this type of oil...

ofcourse all of us including me wanted to save gas but then is it " G " compatible...heres the picture....hope it shows

[telcoman]

Here is what I use.



I change my oil myself every 3k- 3.5k.

Check your owners manual as there is a page in there under the chapter on oil advising what weight to use based on expected temperatures.

Telcoman

[joe603]

My G loves 10w-40 royal purple....

[Sentientbydesign]

Here's telco again with his cheap crap.

Joe, you aren't concerned with running a higher weight oil? I'd be worried about losing power and fuel economy with the extra viscousity. It's analogous to running above vs. below water.

logicmobile,

There shouldn't be a problem with using the 0w-30. I used it in my wife's car and she gained about 1-1.5 mpg. HOWEVER, she already got 31-32 mpg, so it wasn't much of a gain.

If we looked at it from a ratio perspective, the G might gain .5-.75 MPG which doesn't make up for the high cost of the oil.

Amsoil is still on my list of stuff to try. I just need to bite the bullet and get some.

[Omegamerc]

I was using ENEOS for a while, straight out of japan. But its super hard to find stateside, I might be going Motul next. IMO its not worth putting a few dollars in your pocket every 3mo~ at the cost of better performing oil. Better performing oil has a bunch of benefits but at the end of the day its what you want to put in it.

[Tampa G35 Sedan 6MT]

In conclusion if you drive your G like you stole it put synthetic!

If you drive it like Telco put the cheap $hit!

[poms302]

I was using Eneos until I found out that my girlfriend can get Amsoil at cost so now thats all I use.

[logicmobile]

cool thanx but for me i wanted engine safe and mpg + imma look around for more specially that AMSOIL, iwas thinking using that one but also hard to find...thanx guys

[Sentientbydesign]

cool thanx but for me i wanted engine safe and mpg + imma look around for more specially that AMSOIL, iwas thinking using that one but also hard to find...thanx guys

Go to their website and click the "Find a dealer" link. It will show you dealers in your area.

[joe603]

Joe, you aren't concerned with running a higher weight oil? I'd be worried about losing power and fuel economy with the extra viscousity. It's analogous to running above vs. below water.

Since the REVUP G35 has issues with the rings, higher weight oil will help prevent oil consumption. I was skeptical at first, but after a few years and she hasn't burned a drop of oil....I've been convinced. Since I'm using Royal Purple, which is a true synthetic, the loss from the higher weight is minimal. In fact, I'll bet that I get a bump in power compared to Telco's dino poo.

Proof you say...I haven't had to replace my engine. Have you?

[telcoman]

Telco's dino poo.

Proof you say...I haven't had to replace my engine. Have you?

Joe

How many miles on your G?

[Sentientbydesign]

Since the REVUP G35 has issues with the rings, higher weight oil will help prevent oil consumption. I was skeptical at first, but after a few years and she hasn't burned a drop of oil....I've been convinced. Since I'm using Royal Purple, which is a true synthetic, the loss from the higher weight is minimal. In fact, I'll bet that I get a bump in power compared to Telco's dino poo.

Proof you say...I haven't had to replace my engine. Have you?

That works for me.

It's ok Joe. My G will just be worth more if I decide to sell it with an engine that only has 6k mile on it hehehe.

[joe603]

lol! true dat...unless they find out the car has a new engine. Gotta be

Telco, my 05 has just over 30k

[logicmobile]

Is this legit?? no seal of api and other stuff of grade and for that price is hell cheap for it, what do you think... also they have 5w-20, 5w-30