[Z06] 0-40 M1 or 5-30 M1?
09-10-2012, 09:17 PM
#21
_"SCOTT"_
They actually recommend 5W30
Those were actually taken by yours truly 
with my old Z06, you finally got it home!!!
CONGRATS Ryan!!!
On a side note, the previous owner of my Z06 used amsoil 0w30 and changed himself (fully documented an photographed). Does anyone know a great shop in NJ that uses Amsoil and knows what they are doing with Z06's? I'll post a new thread on it later, but just thought I'd throw it out there while I thought of it...
Thanks,
Ryan
Thanks,
Ryan
with my old Z06, you finally got it home!!!CONGRATS Ryan!!!
09-10-2012, 09:52 PM
#22
Le Mans Master
This assumes more viscosity is better--that is not always the case.
Now if you motor regularly sees 250dF+ temperatures, it is almost assured that 0W-40 is better. However, if you motor never sees 240dF then one can make several arguments than 0W-30 will provide longer engine life. In practice, without any specific application in mind one cannot say one is better than the other. Given an application (anything from short trip stop and go :: to all out racing) one can say one is beter.
Now if you motor regularly sees 250dF+ temperatures, it is almost assured that 0W-40 is better. However, if you motor never sees 240dF then one can make several arguments than 0W-30 will provide longer engine life. In practice, without any specific application in mind one cannot say one is better than the other. Given an application (anything from short trip stop and go :: to all out racing) one can say one is beter.
09-17-2012, 02:37 PM
#23
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Ryan,
Don't know of a shop, but if you have a shop, I can get you the AMSOIL at a good price and you can take it to them.
More than happy to get AMSOIL products for forum members at dealer wholesale pricing, about 25% below retail, via the AMSOIL Preferred Customer Program. Drop me a PM if interested.
Don't know of a shop, but if you have a shop, I can get you the AMSOIL at a good price and you can take it to them.
More than happy to get AMSOIL products for forum members at dealer wholesale pricing, about 25% below retail, via the AMSOIL Preferred Customer Program. Drop me a PM if interested.
Ryan
09-17-2012, 02:42 PM
#24
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Thanks,
Ryan
09-17-2012, 06:28 PM
#25
Racer
It is not that the M1 0w40 has more zddp than 5w30 oils, it has more zddp than allowed by the API for API SN spec 30 grade oils (0w30, 5w30 and 10w30), which almost all off the shelf oils are today. Current limit for API SN 30 grade oils is 800 ppm phosphorus.
Tracking may also lead to high oil temps and one way to help combat the viscosity loss as the oil heats up is to go up to a 40 grade oil.
In my LS6 2002 Z06, I track with a racing 10w30 and my oil temps (with aftermarket oil cooler and radiator allowed by SCCA T1 class rules) typically run about 245-250F. They were 248F at the end of a race last weekend at Summit in 95F ambient.
For the current gen Z06, if I had a dual use track day, daily driver car, and ignoring that the owner's manual requires an oil meeting GM dexos1 specs, I'd consider something like this:
AMSOIL Z-ROD 10w30 Synthetic Motor Oil (Product Code ZRTQT)
(zinc – 1440 ppm, phosphorus 1320 ppm)
The Z-ROD is very similar to AMSOIL's racing oil that I use, but it has enough detergents for about 3-5k oil change intervals, whereas I change my oil at about 500 miles.
Tracking may also lead to high oil temps and one way to help combat the viscosity loss as the oil heats up is to go up to a 40 grade oil.
In my LS6 2002 Z06, I track with a racing 10w30 and my oil temps (with aftermarket oil cooler and radiator allowed by SCCA T1 class rules) typically run about 245-250F. They were 248F at the end of a race last weekend at Summit in 95F ambient.
For the current gen Z06, if I had a dual use track day, daily driver car, and ignoring that the owner's manual requires an oil meeting GM dexos1 specs, I'd consider something like this:
AMSOIL Z-ROD 10w30 Synthetic Motor Oil (Product Code ZRTQT)
(zinc – 1440 ppm, phosphorus 1320 ppm)
The Z-ROD is very similar to AMSOIL's racing oil that I use, but it has enough detergents for about 3-5k oil change intervals, whereas I change my oil at about 500 miles.
I use the Z-rod 10w40 in my h/c full bolt daily and it hasn't given me any issues...
09-18-2012, 08:42 AM
#27
Safety Car
This assumes more viscosity is better--that is not always the case.
Now if you motor regularly sees 250dF+ temperatures, it is almost assured that 0W-40 is better. However, if you motor never sees 240dF then one can make several arguments than 0W-30 will provide longer engine life. In practice, without any specific application in mind one cannot say one is better than the other. Given an application (anything from short trip stop and go :: to all out racing) one can say one is beter.
Now if you motor regularly sees 250dF+ temperatures, it is almost assured that 0W-40 is better. However, if you motor never sees 240dF then one can make several arguments than 0W-30 will provide longer engine life. In practice, without any specific application in mind one cannot say one is better than the other. Given an application (anything from short trip stop and go :: to all out racing) one can say one is beter.
09-21-2012, 07:52 AM
#28
Premium Supporting Vendor
The AMSOIL Signature Series 100% Synthetic 0w30 (Product Code AZOQT) complies with API SN specs which limit phosphorus to 800 ppm. In oils tests I've seen, this oil usually comes in right under that limit - very similar in ZDDP to all other API SN oils on the market today. The other properties of the oil that impact performance are the basestock used (three different types of basestock are allowed to be labeled "synthetic" in the U.S.) and other additives to offset the lowering ZDDP over the years. The oil companies do not share this data so it has to be inferred from used oil analysis reports.
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AMSOIL Dealer (Forum Vendor)
AMSOIL Ordering Information (Retail sales using reference #1206638 benefit the forum.)
AMSOIL Preferred Customer Program (Members buy at Wholesale - a savings of about 25%)
AMSOIL Catalog
11-19-2012, 09:18 AM
#29
Le Mans Master
Thread Starter
I am actually starting to think about using Redline 5-30 now.
Does anybody have a chart comparing all of the good oil choices that are GM dexos1® approved that we can use in out corvettes. Something that compares M1 5-30, M1 0-40, Redline 5-30, Amsoil 0-30 and any others that are a viable option. If you weed through this thread you can get infor on most of what is mentioned but was hoping somebody put them all together next to each other so we can see them and easily compare.
Does anybody have a chart comparing all of the good oil choices that are GM dexos1® approved that we can use in out corvettes. Something that compares M1 5-30, M1 0-40, Redline 5-30, Amsoil 0-30 and any others that are a viable option. If you weed through this thread you can get infor on most of what is mentioned but was hoping somebody put them all together next to each other so we can see them and easily compare.
11-19-2012, 10:00 AM
#30
Race Director
I am actually starting to think about using Redline 5-30 now.
Does anybody have a chart comparing all of the good oil choices that are GM dexos1® approved that we can use in out corvettes. Something that compares M1 5-30, M1 0-40, Redline 5-30, Amsoil 0-30 and any others that are a viable option. If you weed through this thread you can get infor on most of what is mentioned but was hoping somebody put them all together next to each other so we can see them and easily compare.
Does anybody have a chart comparing all of the good oil choices that are GM dexos1® approved that we can use in out corvettes. Something that compares M1 5-30, M1 0-40, Redline 5-30, Amsoil 0-30 and any others that are a viable option. If you weed through this thread you can get infor on most of what is mentioned but was hoping somebody put them all together next to each other so we can see them and easily compare.
Many European manufacturers of high performance cars have to meet that emissions warranty requirement for sales in the US and several of them recommend M1 0-40. GM recommends M1 0W-40 for Euro Z06's. Apparently Mobil does not export M1 5W-30 to Europe.
Here is a Mobil 1 product comparison: http://www.mobiloil.com/USA-English/...duct_Guide.pdf
If you want more details you need to go to each specific product and click on the Product Data Sheet link near the bottom of that specific product page (like M1 0W-40)
Last edited by AzDave47; 11-19-2012 at 10:04 AM.
11-19-2012, 10:44 AM
#32
Race Director
11-19-2012, 11:39 AM
#33
This thread provides many oil analysis results.
Bottom line is that Amsoil Signature Series is an excellent oil for high performance engines and that ZDDP replacement with moly and boron works ...
http://www.svtperformance.com/forums...-oil-poll.html
http://www.svtperformance.com/forums...l#post11085969
Bottom line is that Amsoil Signature Series is an excellent oil for high performance engines and that ZDDP replacement with moly and boron works ...
http://www.svtperformance.com/forums...-oil-poll.html
http://www.svtperformance.com/forums...l#post11085969