I just posted my analysis over on my350z in the thread " VQ Oil Analysis and Info". This is post 680 in this thread so here is a direct link to the post: http://my350z.com/forum/6523448-post680.html

Here is the full thread from page 1 which I highly recommend reading through the first few posts ... you will learn A LOT about different oils and what everything really means: http://my350z.com/forum/engine-drive...ysis-info.html

My oil analysis may not mean much to you until you read the first few posts of that thread. The topic starter "Resolute" graciously breaks down most of the Oil Analysis' that are posted to give you an idea of how well your particular oil is protecting your engine. I have been using Mobil1 0W-40 for several oil changes now based on information and data from that thread as it has shown to protect the VQ very well, especially on boosted motors.

 

How much does an analysis cost?

 

http://www.blackstone-labs.com/dyson_analysis.html

between $22.50 to $60 depending on what you want.

 

^I didn't do the Dyson analysis and neither do most people in the thread I pointed to ... I did the standard analysis and it's $22.50 plus another $10 to have the TBN analyzed:

http://www.blackstone-labs.com/standard_analysis.html

http://www.blackstone-labs.com/tests_price_list.html

 

The analysis looks good, especially considering 36k miles with a supercharger!

 

I should have mine analyzed...getting close to 100k miles for me.

 

Just an FYI, the Mobile M110 filter fits our car too and it larger than the M108.

 

Yeah I've heard that too. From what I understand the M110 is just a longer filter that potentially has a longer filter element inside (more filtering?). My question to using that filter is how much additional capacity does this require and would it mean requiring additional oil? My assumption is that the additional capacity/volume used by the longer filter is negligible, I just think about things like this because with my Vortech, there is already additional oil being utilized as it lubricates the blower. It's probably not a big deal...

 

The mileage isn't really the indicator, it needs to be an ongoing analysis to see if the oil you're using is adequately protecting the engine internals. If you take some time and study that VQ Oil Analysis and Info thread, you will see how some oils that cost a lot more and claim greater protection are actually doing more harm than oils that cost half the price...

It's just like the last time I had my oil changed out at my local Valvoline and brought my own M1 0W-40, the oil change tech was trying to tell me that his Valvoline Synthetic had x% greater protection than any M1 oil and my response was "Not in my motor it doesn't". Oil Analysis is a great way to show that some companies spend more money on advertising their product instead of creating a genuinely good product.

A great example is the age-old oil test that Royal Purple does (they were doing this at the G3/Grubbs day at Motorsport Ranch) where they essentially apply direct pressure to a bearing and use oil between the 2 metal surfaces and then show an indentation caused by other oils as compared to RP. This test has been shown that it actually provides zero real-world protection to a running motor and is irrelevant (this was sited in the VQ Oil thread as well).

 

No extra oil needed, it's about an inch longer and same OD if I remember correctly. Your car is looking great BTW. Next time I'm in Plano I'll have to meet up with the DFW G owners.

 

Thanks bro, I need to update the pics in my sig since I changed my wheel color but otherwise all is the same ... you should come out for one of our meets, last weekend we had nearly 20 G's - it was a great time!

 

should 0w-40 be used for boosted motors? I know this is a super newb question, but I've been running the standard oil weight for my vortech coupe, and on either mobile 1 synthetic or the royal purple.

 

Well I will tell you my opinion from what I have learned in the VQ Oil Analysis and Info thread but I would highly recommend that you set aside time to read that thread and make your own informed decision. Resolute has an incredible understanding of the components that make up oil and how to read the different compounds and elements that are found in an oil analysis, I have barely a fraction of this understanding...

Now with that said ... I have been using M1 0W-40 mainly because it has been shown in the VQ to provide excellent wear protection. Mobil1 0W-40 has been shown to be a "thin" 40 weight oil mainly based on its viscosity (it's at the lower range of a 40 weight). A heavier weight oil theoretically would provide a higher level of engine protection from wear as it is a "thicker" oil at operating temperature, but potentially at the expense of horsepower. With the higher boost pressures introduced to the motor I figure that a couple hp sacrifice is well worth the added protection.

There are others that have been using Rotella T-syn 5W-40 (available at WalMart) and have been seeing good results in a built TT motor. However I don't think that is necessarily a good indicator of how it will perform in a stock block. There are others that have tried this with a NA motor but I don't recall their results.

 

Just got a reply from Resolute over at my350z about my used oil analysis (UOA):

I think it's safe to say that the extended drain period (9+ months) did not have any adverse affects on the ability of the oil to protect my engine. Regardless, I think I will stick with a 3,000 mile change interval even though Blackstone said I could run longer than this.

Now if someone could find me a place to get M1 0W-40 for less than the ~$6.99 a quart, I will be a happy man!

 

you're exactly right. Different oils will impact different engine applications in a different manner, all depending on engine type, use, size, etc...

I remember when I had my 1989 Cavalier with a built Turbocharged 3.1L V6, i used exclusively Mobil 10w-30 full synthetic (with an ol' Mustang 5.0L oil filter...that sucker was HUGE!). I read different analyses on oil viscosity, breakdown, wear...along with user opinions. It worked great and yes i still changed my oil every 3000 miles. It was a great daily driver too!

Now for my pretty much stock VQ. I see no reason i should spend the extra money on full synthetic oil if I have been using regular dino oil Mobil 1 for every oil change. My car's a daily driver and i change it anywhere between 3000-3500 miles. it fits my driving style and it's applicable to my use.

Now if you're tracking your car, have a VERY aggressive driving style, or of course forced induction...then its a whole other story. The properties of the oil you will want to use will be determined based on what best suits the needs for your application.