engine oil
Race Director
Joined: May 2001
Posts: 15,323
Likes: 2,077
From: Guelph, Ontario
I change my oil when the oil life monitor hits zero and my oil analysis reports have shown the oil to still be suitable for continued use, with very little contamination in it.
Burning Brakes
Joined: Apr 2009
Posts: 1,163
Likes: 4
From: Concord California
Patman, no I'm not saying that, I too also use the DIC indicator, but as a general rule, and, yes old school, 3 to 5000 is a good time for oil change if driven normal driving. The C5 is my first vehicle that has a oil change indicator, so I do use it, this is my second oil change and I had the car 2 years, purchased with 53K miles and now has 59k, so the DIC said about the same miles, between 3k before it counted down to like 3% left.. My other vehicles were dumb, they never talked to me like the vette does...and I do listen...
Premium Supporting Vendor
Joined: Aug 2001
Posts: 5,364
Likes: 38
From: King George VA
(Amsoil) 25,000 miles or one year!! Same for the oil filter!!http://www.c66racing-synthetics.com/index.htm
FYI, I used AMSOIL Signature Series Synthetic 0w30 (Product Code SSOQT) in my LS2 engined 06 CTS-V until I sold it recently.
Used oil analysis results for this engine (Jun 07 was Mobil 1 with AC Delco filter, the remaining samples AMSOIL 0w30 with AMSOIL EAO32 filter. For those that haven't seen these before, wear metals for an LSx engine are predominantly aluminum, copper, iron and lead.
Cadillac CTS-V Used Oil Analysis - AMSOIL 0w30
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AMSOIL Preferred Customer Program (Members buy at Wholesale - a savings of about 25%)
Burning Brakes
Joined: Jan 2010
Posts: 763
Likes: 0
From: Murfreesboro TN
Thanks for the mention!
FYI, I used AMSOIL Signature Series Synthetic 0w30 (Product Code SSOQT) in my LS2 engined 06 CTS-V until I sold it recently.
Used oil analysis results for this engine (Jun 07 was Mobil 1 with AC Delco filter, the remaining samples AMSOIL 0w30 with AMSOIL EAO32 filter. For those that haven't seen these before, wear metals for an LSx engine are predominantly aluminum, copper, iron and lead.
Cadillac CTS-V Used Oil Analysis - AMSOIL 0w30
FYI, I used AMSOIL Signature Series Synthetic 0w30 (Product Code SSOQT) in my LS2 engined 06 CTS-V until I sold it recently.
Used oil analysis results for this engine (Jun 07 was Mobil 1 with AC Delco filter, the remaining samples AMSOIL 0w30 with AMSOIL EAO32 filter. For those that haven't seen these before, wear metals for an LSx engine are predominantly aluminum, copper, iron and lead.
Cadillac CTS-V Used Oil Analysis - AMSOIL 0w30
I wonder what would an oil analysis for Mobil 1 have looked like in comparison in the same engine. I only use Mobil 1 and have considered Amsoil.
Premium Supporting Vendor
Joined: Aug 2001
Posts: 5,364
Likes: 38
From: King George VA
Racer
Joined: Apr 2007
Posts: 443
Likes: 0
From: Niagara Region
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Racer
Joined: Aug 2005
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Geaux Tigers!!!!
Joined: Nov 2007
Posts: 2,731
Likes: 424
From: DeRidder LA
St. Jude Donor '08 thru '26
Taking the recommendation of one of the best LS engine builders in the country I've been using Shell Rotella T in all my cars, trucks , motorcycles and even my lawn mowers for years..There is a couple of oil additives and I can find out which ones they are to help prevent bearing and cylinder wall wear......
But don't take my word for it just ask any over the road trucker who uses it in his big rig with over 500,000 without a overhaul which oil he would use...
But don't take my word for it just ask any over the road trucker who uses it in his big rig with over 500,000 without a overhaul which oil he would use...
Safety Car
Joined: Jan 2008
Posts: 4,797
Likes: 52
From: Boise
Taking the recommendation of one of the best LS engine builders in the country I've been using Shell Rotella T in all my cars, trucks , motorcycles and even my lawn mowers for years..There is a couple of oil additives and I can find out which ones they are to help prevent bearing and cylinder wall wear......
But don't take my word for it just ask any over the road trucker who uses it in his big rig with over 500,000 without a overhaul which oil he would use...
But don't take my word for it just ask any over the road trucker who uses it in his big rig with over 500,000 without a overhaul which oil he would use...
I use German Castrol aka Castrol Syntec 0W-30
Team Owner
Joined: May 2001
Posts: 25,044
Likes: 1,265
From: Virginia
St. Jude Donor '11
UM...nope...the owners manual is your friend
"As shown on the viscosity chart, SAE 5W30 is best for your vehicle. However, you can use SAE 10W-30 if it is going to be 0 degrees F or above..."(thanks kp1
)On second thought, you may be talking about the "Chinese GM"
Last edited by Yello95; Apr 6, 2010 at 07:35 PM.
Race Director
Joined: May 2001
Posts: 15,323
Likes: 2,077
From: Guelph, Ontario
Taking the recommendation of one of the best LS engine builders in the country I've been using Shell Rotella T in all my cars, trucks , motorcycles and even my lawn mowers for years..There is a couple of oil additives and I can find out which ones they are to help prevent bearing and cylinder wall wear......
But don't take my word for it just ask any over the road trucker who uses it in his big rig with over 500,000 without a overhaul which oil he would use...
But don't take my word for it just ask any over the road trucker who uses it in his big rig with over 500,000 without a overhaul which oil he would use...
Team Owner
Joined: Jun 1999
Posts: 41,792
Likes: 153
From: Houston,Texas USA
Premium Supporting Vendor
Joined: Aug 2001
Posts: 5,364
Likes: 38
From: King George VA
Unfortunately, the API has made similar restrictions on the newest diesel specification, CJ-4, has they have on API SM automotive oils. According to the new specs for CJ-4, the oil must contain lower levels of ZDDP, Calcium and Phosphorous, it must also not have a TBN any higher than 9. TBN is a measure of the oil’s alkaline reserve, which is used for fighting off the damaging effects of acid. Most diesel oils on the market today are formulated to meet CJ-4 specifications. CJ-4 limits phosphorus to 1200 ppm, whereas the previous diesel spec, CI-4+, limited phosphorus to 1400 ppm. For comparison, the automotive spec for API SM/ILSAC GF-4 30 grade oils is 800 ppm phosphorus.
Short story - your Shell Rotella T doesn't have the anti-wear additives it once had.
Burning Brakes
Joined: Oct 2009
Posts: 973
Likes: 3
From: Mid Michigan
I plan to use Amsoil fully synthetic ASL series 5W30 motor oil.
My first oil change will be performed at 1,000 miles, not to exceed one (1) year.
Oil filtration level is of paramount importance. I plan to use AC Delco
UPF48R oil filters.
I also plan to install two (2) magnetic oil drain plugs during the first oil change.
Hopefully my oil drain pan will hold the entire 10.5 quarts of used motor oil.
Regards,
GSRANDY
My first oil change will be performed at 1,000 miles, not to exceed one (1) year.
Oil filtration level is of paramount importance. I plan to use AC Delco
UPF48R oil filters.
I also plan to install two (2) magnetic oil drain plugs during the first oil change.
Hopefully my oil drain pan will hold the entire 10.5 quarts of used motor oil.
Regards,
GSRANDY