Mobil 1 10W/30 in 2001 LS1 Trans Am 3,821 miles on oil.

LS1WhiteWs6 · Dec 10, 2003

2001 Trans Am Ws6

Miles on car - 25,731
Miles on oil - 3,821
Oil Type - Mobil 1 10W/30

Aluminum - 4
Chromium - 1
Iron - 17
Copper - 42
Lead - 5
Tin - 2
Molybdenum - 65
Nickel - 1
Manganese - 1
Silver - 0
Titanium - 0
Potassium - 0
Boron - 126
Silicon - 12
Sodium - 6
Calcium - 2832
Magnesium - 37
Phosphorus - 699
Zinc - 943
Barium - 0

SUS Viscosity @ 210* - 60.8
Flashpoint - 370*
Fuel % - Antifreeze % - 0.0
Water % - 0.0
Insolubles % - 0.3

TR3-2001SE · Dec 10, 2003

Looks like a good report to me. Lead just a little more than I would like to see but a good report.

TooSlick · Dec 10, 2003

Since you live in Texas, you should be able to find Royal Purple easily at retail shops ...I'd run the RP 10w-30, two times in a row and test the second batch. I think you'll see significantly less iron wear, particularly in this LS1 motor.

The GC, 0w-30 would be the other OTS synthetic I'd try in here; given Patmans results.

Al · Dec 10, 2003

quote:

Originally posted by TooSlick:
Since you live in Texas, you should be able to find Royal Purple easily at retail shops ...I'd run the RP 10w-30, two times in a row and test the second batch. I think you'll see significantly less iron wear, particularly in this LS1 motor.

The GC, 0w-30 would be the other OTS synthetic I'd try in here; given Patmans results.

Well I'd like to see a mix of 10W-30 with 15W-50. Not saying it would do better than than the ones you suggested though. What the heck any comparison is good.

HOndaGuy · Dec 10, 2003

Copper is extremely low in this engine, and it looks like the oil didn't shear one bit. I say this a good oil for this engine.

[ December 10, 2003, 08:46 PM: Message edited by: HOndaGuy ]

Motorbike · Dec 10, 2003

quote:

Originally posted by HOndaGuy:
Copper is extremely low in this engine, and it looks like the oil didn't shear one bit. I say this a good oil for this engine.

I would have to say so too since no other information was posted.

It does look like a car that does not get driven daily due to the low overall miles and might have have a bit of time on the oil along with a KN Filter making that SI and FE elevated but not alarming.... Just not enough info .

[ December 10, 2003, 09:20 PM: Message edited by: Motorbike ]

Patman · Dec 10, 2003

quote:

Originally posted by TR3-2001SE:
Looks like a good report to me. Lead just a little more than I would like to see but a good report.

Did you mean to say iron? Lead is pretty good, it's the iron which could use some improvement.

I still believe the three best oils for the LS1 are (in alphabetical order):

Amsoil 5w30
GC 0w30
Redline 5w30

Last_Z · Dec 10, 2003

LS1White,
Good report! You might want to check out the "GM knock" thread. Lot of good info there with two other LS1 reports, including mine.

LS1WhiteWs6 · Dec 10, 2003

quote:

Originally posted by Last_Z:
LS1White,
Good report! You might want to check out the "GM knock" thread. Lot of good info there with two other LS1 reports, including mine.

I half arsed read the GM knock thread but when i have more time later on i will read through it completely.

Patman on another board suggested that i give Amsoil 5w/30, Redline 5w/30, or German made Castrol Syntec 0w/30 a try next oil change.
Think i'm gonna go with either Amsoil or Redline next time. I refilled with the same oil i used duing the last interval and will do another oil analysis on that too.

My car is daily driven just not as much as one would think a daily driven car would be.

Also for the UOA in the 1st post. I have a K&N Filter. I also added around 1qt of oil during the interval.

[ December 10, 2003, 09:58 PM: Message edited by: LS1WhiteWs6 ]

Chris B. · Dec 10, 2003

This is a great report on the LS1. I think Mobil 1 will work well in this engine. The Halvoline I used in mine was a 20w and the wear numbers were good so I don't really buy the Mobil 1 is too thin idea for this engine. I use M1 10w30 year round in Colorado.

vettenuts · Dec 10, 2003

Well, if the snow ever clears from the road long enough, I can get the Vette out for it's annual change. I am running Amsoil 5W-30 and will post results whenever I get them. Oil will have about 5,500-6,000 miles on it when I change it which will be fairly consistant with my last change.

buster · Dec 10, 2003

quote:

I think Mobil 1 will work well in this engine. The Halvoline I used in mine was a 20w and the wear numbers were good so I don't really buy the Mobil 1 is too thin idea for this engine.

I go back and forth with this theory. It's reports like this that make me think Mobil 1 is a great choice for LS1's. We've seen quite of few really good Mobil 1 reports now in LS1's that would make me feel comfortable using it. Again, IMO, deposits and sludge resistance are key to a synlube, not so much 5pmm of Pb vs 2pmm of Pb. Kind of insignificant if you ask me.

Vettenuts, how do you drive your car, hard/easy etc.? This plays a huge factor with these reports.

wtd · Dec 11, 2003

It is a pretty good report but the oil only has 3,821 miles on it which is really not that much. What would it be at double the mileage? A good conventional oil would probably have given similiar results at this mileage.

Tones · Dec 11, 2003

Doesn't it seem excessive that with only 25k miles on the car and with less than 4k miles on the oil, it used a full quart during this interval? What is it about Mobil 1 that causes so much oil consumption?

LS1WhiteWs6 · Dec 12, 2003

quote:

Originally posted by Tones:
Doesn't it seem excessive that with only 25k miles on the car and with less than 4k miles on the oil, it used a full quart during this interval? What is it about Mobil 1 that causes so much oil consumption?

To be honest with you i could have been wrong with the 1qt thing. I did add 1 qt but that was because of the "Low Oil" light came on. So i thought it meant that my oil was low. It appeared to be low when i checked it. I found out later that if you go pass 3000 miles on an oil it will make the light come on. Did i hear right?

Motorbike · Dec 12, 2003

quote:

Originally posted by Tones:
Doesn't it seem excessive that with only 25k miles on the car and with less than 4k miles on the oil, it used a full quart during this interval? What is it about Mobil 1 that causes so much oil consumption?

The LS1 has a light tension ring set and and narrower width than most other engines .

It's not the oil although if I owned one I would use the 0/40 Mobil for other reasons .It's good stuff !

Last_Z · Dec 12, 2003

quote:

Originally posted by LS1WhiteWs6:

quote:

Originally posted by Tones:
Doesn't it seem excessive that with only 25k miles on the car and with less than 4k miles on the oil, it used a full quart during this interval? What is it about Mobil 1 that causes so much oil consumption?

Click to expand...

To be honest with you i could have been wrong with the 1qt thing. I did add 1 qt but that was because of the "Low Oil" light came on. So i thought it meant that my oil was low. It appeared to be low when i checked it. I found out later that if you go pass 3000 miles on an oil it will make the light come on. Did i hear right?

Are you sure it was the "Low Oil Light?"
It should have been more than a quart if so....maybe 2 or more.
I wonder if you saw the "Change Oil" light and you thought it was the "Low Oil" one?
Rick

Mobil 1 10W/30 in 2001 LS1 Trans Am 3,821 miles on oil.

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