amsoil weight?
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8th Gear
Joined: Sep 2006
Posts: 8
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From: Florida
amsoil weight?
Its my first car with a cam and didn't know if the cam made a diffrence in the weight oil I should use. So my ? is whats the best Amsoil to use in the engine on a cammed 01 Z06 (ms4) that will only see spirited street driving in Tx. I use 6 quarts of 5w40 in the WS6 with the longer k&n filter, does anyone do this with there vette to make it a nice even # of quarts
Premium Supporting Vendor
Joined: Aug 2001
Posts: 5,364
Likes: 38
From: King George VA
Garrett,
As for the filter, I personally would not recommend a longer filter on the Corvette. Given the filters location, a longer filter will stick below the oil pan and be susceptible to hitting something, potentially causing a loss of oil pressure.
My thoughts on which oil to use. The new API SM standards put fairly restrictive limits on the ZDDP anti-wear additives that can be used in 30 grade oils. For a car out of warranty, I would consider the AMSOIL Synthetic 5w40 European Motor Oil. Note that this oil does not meet the GM Standard 4718M, which the owners manual requires for the Corvette. This oil has a High Temp High Shear rating of 3.7. As a comparison, Mobil 1 has an HTHS rating of 3.09. AMSOIL SAE Synthetic High Performance 10w40 has an even higher HTHS at 4.3, but the 5w40 will flow better when cold and is thus probably a better choice for a daily driver. FYI, in my track driven Z06, I use 10w40, but let the oil warm up to over 150F before I go out on the track.
If you desire to use an oil suitable for GM Standard 4718M, AMSOIL makes these products in order of cost/quality:
AMSOIL Signature Series Synthetic 0w30
AMSOIL SAE Synthetic 5w30
AMSOIL XL Synthetic 5w30
All three of these have HTHS ratings of 3.2.
I use the previous version of the 0w30 in my 06 CTS-V (I stocked up before AMSOIL came out with the new Signature Series 0w30 this fall).
As for the filter, I personally would not recommend a longer filter on the Corvette. Given the filters location, a longer filter will stick below the oil pan and be susceptible to hitting something, potentially causing a loss of oil pressure.
My thoughts on which oil to use. The new API SM standards put fairly restrictive limits on the ZDDP anti-wear additives that can be used in 30 grade oils. For a car out of warranty, I would consider the AMSOIL Synthetic 5w40 European Motor Oil. Note that this oil does not meet the GM Standard 4718M, which the owners manual requires for the Corvette. This oil has a High Temp High Shear rating of 3.7. As a comparison, Mobil 1 has an HTHS rating of 3.09. AMSOIL SAE Synthetic High Performance 10w40 has an even higher HTHS at 4.3, but the 5w40 will flow better when cold and is thus probably a better choice for a daily driver. FYI, in my track driven Z06, I use 10w40, but let the oil warm up to over 150F before I go out on the track.
If you desire to use an oil suitable for GM Standard 4718M, AMSOIL makes these products in order of cost/quality:
AMSOIL Signature Series Synthetic 0w30
AMSOIL SAE Synthetic 5w30
AMSOIL XL Synthetic 5w30
All three of these have HTHS ratings of 3.2.
I use the previous version of the 0w30 in my 06 CTS-V (I stocked up before AMSOIL came out with the new Signature Series 0w30 this fall).
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AMSOIL Preferred Customer Program (Members buy at Wholesale - a savings of about 25%)
Drifting
Joined: Nov 2001
Posts: 1,658
Likes: 25
From: Rochester Minnesota
Garrett3,
Please note that Amsoil only "recommends" the oils above for use where GM4718M is specified. The oils may or may not actually meet the spec.
You can count on the Mobil 1 to MEET the spec because GM says it does.
Please note that Amsoil only "recommends" the oils above for use where GM4718M is specified. The oils may or may not actually meet the spec.
You can count on the Mobil 1 to MEET the spec because GM says it does.
Instructor
Joined: Feb 2005
Posts: 219
Likes: 0
You could also use Mobil 1 0w40 which is used in Indy.
http://www.mobil.com/USA-English/Lub...il_1_0W-40.asp
ht/hs 3.7
Tbn 11.4
pao/ester
http://www.mobil.com/USA-English/Lub...il_1_0W-40.asp
ht/hs 3.7
Tbn 11.4
pao/ester
