azvipermike
Enthusiast
Living in Arizona what is best to use?
What is the best motor oil for my 2001 GTS?
- Thread starter azvipermike
- Start date
azvipermike
Enthusiast
i did that not much came up
Darth Menace
Enthusiast
Ya, the search function on this site *****. Nothing relevant shows up until a start a thread and then it shows me related threads.
If you start a new thread you are often told to search, but if you continue one that has already been started you are told not to rob threads.
Dont get me wrong, people on this site are really helpful, but the search *****.
If you start a new thread you are often told to search, but if you continue one that has already been started you are told not to rob threads.
Dont get me wrong, people on this site are really helpful, but the search *****.
NI-KA
Enthusiast
it was better before the new site
Darth Menace
Enthusiast
If this was facebook I would click "like". If threads didn't get repeated now and then, forums like this will become read only archives.
I use Amsoil 10W30, but I too started a oil thread a few weeks back.
72hemi
Enthusiast
I'm running 15w50 Mobil 1 in my 01 ACR.
dave6666
Enthusiast
0w40 M1 in my DFW area '01 GTS. Immediately noticed less valve noise. Recommended by Tom. Wasn't available in 2001 when the car was released but if it was it just may have been the factory M1 fill.
dave6666
Enthusiast
Quote from Tom:
An SAE 0W-40 would be better.
The "0W" label only means something at very low temperatures; in this case that the oil allows good engine cranking speeds down to -35C and good oil flow through the oil pickup tube at -40C. It means nothing as far as warmed up temperature operation.
The "40" means it is thicker than a "30" when at the warmed up oil sump temperature. However, there is "fluid friction" and so an SAE 40 will have slightly more drag in the bearings than an SAE 30. What the OEMs have done with better precision manufacturing equipment is to make surfaces more uniform, which lets them make clearances overall tighter, and then allows the use of oils with less fluid friction, like the oil designated for the 5.7L HEMI engine - an SAE 0W-20.
Pressure is not relevant other than indicating the energy needed to place the oil where it is needed. The general "10 psi for every 1000 RPM" comes from having to push the oil against the centrifugal force inside the crank so that it reaches the next crank throw. Once the oil is positioned ahead of a spinning journal, it will get pulled in anyway. The 60 psi out of the pump is not going to make much difference to the 10,000 psi pressure under the journal.
An SAE 0W-40 will therefore allow better starting, better fuel economy when warming up, and slightly poorer fuel economy when fully warmed, but with a thicker oil film - meaning directionally better engine protection.
OEMs did have the choice of an SAE 5W-40 in the past, a viscosity grade favored by the Europeans. Now that SAE 0W-40 is available, it will also be formulated for Euro applications, meaning it will have more additive than typical SAE 10W-30 oils. That alone is worth the switch.
An SAE 0W-40 would be better.
The "0W" label only means something at very low temperatures; in this case that the oil allows good engine cranking speeds down to -35C and good oil flow through the oil pickup tube at -40C. It means nothing as far as warmed up temperature operation.
The "40" means it is thicker than a "30" when at the warmed up oil sump temperature. However, there is "fluid friction" and so an SAE 40 will have slightly more drag in the bearings than an SAE 30. What the OEMs have done with better precision manufacturing equipment is to make surfaces more uniform, which lets them make clearances overall tighter, and then allows the use of oils with less fluid friction, like the oil designated for the 5.7L HEMI engine - an SAE 0W-20.
Pressure is not relevant other than indicating the energy needed to place the oil where it is needed. The general "10 psi for every 1000 RPM" comes from having to push the oil against the centrifugal force inside the crank so that it reaches the next crank throw. Once the oil is positioned ahead of a spinning journal, it will get pulled in anyway. The 60 psi out of the pump is not going to make much difference to the 10,000 psi pressure under the journal.
An SAE 0W-40 will therefore allow better starting, better fuel economy when warming up, and slightly poorer fuel economy when fully warmed, but with a thicker oil film - meaning directionally better engine protection.
OEMs did have the choice of an SAE 5W-40 in the past, a viscosity grade favored by the Europeans. Now that SAE 0W-40 is available, it will also be formulated for Euro applications, meaning it will have more additive than typical SAE 10W-30 oils. That alone is worth the switch.
AZTVR
Enthusiast
Just to reiterate what dave quoted. Mobil 1 0W-40 has higher ZDDP content for better lubricity compared to the 10W-30 that was recommended as OEM. Mobil 1 15W-50 has even higher levels, and folks that run on the track typically use that. http://www.mobiloil.com/USA-English/MotorOil/Files/Mobil_1_Product_Guide.pdf
I do not find published ZDDP for other manufacturers, so, I tend to stick with Mobil 1. I haven't seen any technical treatise on how much ZDDP is needed based on usage and intended mileage. Too many variables, I think.
I do not find published ZDDP for other manufacturers, so, I tend to stick with Mobil 1. I haven't seen any technical treatise on how much ZDDP is needed based on usage and intended mileage. Too many variables, I think.
Another vote for M1 0-40....the best sanely-proced oil out there. Amsoil and Joe Gibbs oils are full of additive goodies as well but cost A LOT more and are probably not necessary for street duty. In the summer you can certainly run M1 15-50 but stick with 0-40 for the winter (although winter is a relative term where you live!).
KNG SNKE
Enthusiast
I've been running Mobil 1 turbo diesel oil as recommended by tom in many threads. It is 5w40 turbo diesel Mobil 1.
ZYellow01RT
Enthusiast
- Joined
- Jul 29, 2010
- Posts
- 1,060
- Reaction score
- 0
Eddie Martin (Viper tech at Bill Luke Dodge) uses M1 0W40 on my oil changes, but also said that in normal (i.e., non-racing) conditions, either 5W30 or 10W30 is fine in AZ (as long as you're in the valley, which you are).
Problem is that no one seems to carry the 5 qt jugs of M1 0W40, so I'm just gonna **** it up pricewise and get the qt bottles of 0W40 myself. Hope this helps.
ZYellow01RT
Enthusiast
- Joined
- Jul 29, 2010
- Posts
- 1,060
- Reaction score
- 0
Link please? That's a great price. Shipping extra?
01sapphirebob
Enthusiast
Agree with this. I have always put in the factory fill.
Detlef
Enthusiast
With shipping from Amazon and compared to Advanced Autoparts with local tax, that's a 25-30 cents per quart savings. Here is the Amazon link ...
VPRVENM97
Enthusiast
Mobil1 5w40 turbo diesel
bluegrassvet1
Enthusiast
That's a good price. Thanks for the tip
99 R/T 10
Enthusiast
Autozone sometimes has M1 on sale(5 qts) with the filter for $30. I also like to use the 0W-40 or the 5W-40 deisel.
ZYellow01RT
Enthusiast
- Joined
- Jul 29, 2010
- Posts
- 1,060
- Reaction score
- 0
Thanks for the link, but Wallymart is actually cheaper (even with our extreme Arizona 9.9% sales tax).
Only $6.47/qt for the M1 0W40 and just stocked up...
GTS Bruce
Enthusiast
Rotella T6 fully synthetic 5-40 for turbocharged diesels. $21 something for a gal at WMT. The M1 version is $25 SOMETHING AT wmt.
dave6666
Enthusiast
If you read Tom's info I posted above, 0w40 wasn't available as a "factory fill" when the Gen 2's were being built. In other words, time to adapt.
dave6666
Enthusiast
Thanks for the link, but Wallymart is actually cheaper (even with our extreme Arizona 9.9% sales tax).
Only $6.47/qt for the M1 0W40 and just stocked up...
$50 for (6) is $8.33 a qt. Yeah, that's like $1.75 more a qt that WalMart's every day price, and, I get the 5 qts + filter deals at the big box stores for $29.99.
oil is oil, change it often and you wil be fine regardless of what you use. as long as you dont use it in EXTREME condition. most owners dont drive their cars nearly hard enough to worry
that said, always use what tom says to use and you can go wrong
that said, always use what tom says to use and you can go wrong
v10enomous
Enthusiast
Sam's Club has Mobil 1 10w-30 6 packs for $33.98.
http://www.samsclub.com/sams/shop/product.jsp?productId=145609&navAction=&_requestid=122684
http://www.samsclub.com/sams/shop/product.jsp?productId=145609&navAction=&_requestid=122684
