Rev-Up oil consumption has suddenly decreased
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A bit of background: I have had oil consumption problems with the rev-up
motor in my Z (35th Anniv 6-spd). For the first year of ownership, the
consumption held pretty constant at 1 quart per 1500 miles. There would
allways be a sooty buildup in the exhaust tips after a long drive. Once
I hit 5000 miles, I decided to switch from conventional oil to Mobil 1.
Here's the strange part: After the switch to Mobil 1, my oil consumption
has decreased dramatically. In fact, I just completed my 3rd consumption
test at the dealer, and I am now consuming about 1 quart every 3500 to
4000 miles. The sooty buildup is gone too.
Here's a breakdown of the consumption and what oil I was using:
ODO 1000mi, Conventional 5W30, 1 quart per 1500 miles.
ODO 2700mi, Conventional 5W30, 1 quart per 1600 miles.
ODO 5000mi, Mobil 1 5W30, 1 quart per 2200 miles.
ODO 6500mi, Mobil 1 5W30, 1 quart per 3750 miles.
In addition, I have not changed my driving habits. If anything, I have
driven the car harder during this last consumption test, and the oil
consumption keeps decreasing. I really don't think it is the piston
rings breaking in, because that should have happened well before 7,000
miles on the ODO.
I allways use the same Chevron 92 octane gas.
Does anyone have any ideas as to what might be happening? Im extremely
happy with the results, but I don't understand why.
motor in my Z (35th Anniv 6-spd). For the first year of ownership, the
consumption held pretty constant at 1 quart per 1500 miles. There would
allways be a sooty buildup in the exhaust tips after a long drive. Once
I hit 5000 miles, I decided to switch from conventional oil to Mobil 1.
Here's the strange part: After the switch to Mobil 1, my oil consumption
has decreased dramatically. In fact, I just completed my 3rd consumption
test at the dealer, and I am now consuming about 1 quart every 3500 to
4000 miles. The sooty buildup is gone too.
Here's a breakdown of the consumption and what oil I was using:
ODO 1000mi, Conventional 5W30, 1 quart per 1500 miles.
ODO 2700mi, Conventional 5W30, 1 quart per 1600 miles.
ODO 5000mi, Mobil 1 5W30, 1 quart per 2200 miles.
ODO 6500mi, Mobil 1 5W30, 1 quart per 3750 miles.
In addition, I have not changed my driving habits. If anything, I have
driven the car harder during this last consumption test, and the oil
consumption keeps decreasing. I really don't think it is the piston
rings breaking in, because that should have happened well before 7,000
miles on the ODO.
![Confused](https://my350z.com/forum/images/smilies/confused.gif)
I allways use the same Chevron 92 octane gas.
Does anyone have any ideas as to what might be happening? Im extremely
happy with the results, but I don't understand why.
![](https://my350z.com/forum/images/smilies/icon38.gif)
Last edited by Derratte; 06-06-2007 at 01:20 PM.
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Originally Posted by Derratte
A bit of background: I have had oil consumption problems with the rev-up
motor in my Z (35th Anniv 6-spd). For the first year of ownership, the
consumption held pretty constant at 1 quart per 1500 miles. There would
allways be a sooty buildup in the exhaust tips after a long drive. Once
I hit 5000 miles, I decided to switch from conventional oil to Mobil 1.
Here's the strange part: After the switch to Mobil 1, my oil consumption
has decreased dramatically. In fact, I just completed my 3rd consumption
test at the dealer, and I am now consuming about 1 quart every 3500 to
4000 miles. The sooty buildup is gone too.
Here's a breakdown of the consumption and what oil I was using:
ODO 1000mi, Conventional 5W30, 1 quart per 1500 miles.
ODO 2700mi, Conventional 5W30, 1 quart per 1600 miles.
ODO 5000mi, Mobil 1 5W30, 1 quart per 2200 miles.
ODO 6500mi, Mobil 1 5W30, 1 quart per 3750 miles.
In addition, I have not changed my driving habits. If anything, I have
driven the car harder during this last consumption test, and the oil
consumption keeps decreasing. I really don't think it is the piston
rings breaking in, because that should have happened well before 7,000
miles on the ODO.
I allways use the same Chevron 92 octane gas.
Does anyone have any ideas as to what might be happening? Im extremely
happy with the results, but I don't understand why.![](https://my350z.com/forum/images/smilies/icon38.gif)
motor in my Z (35th Anniv 6-spd). For the first year of ownership, the
consumption held pretty constant at 1 quart per 1500 miles. There would
allways be a sooty buildup in the exhaust tips after a long drive. Once
I hit 5000 miles, I decided to switch from conventional oil to Mobil 1.
Here's the strange part: After the switch to Mobil 1, my oil consumption
has decreased dramatically. In fact, I just completed my 3rd consumption
test at the dealer, and I am now consuming about 1 quart every 3500 to
4000 miles. The sooty buildup is gone too.
Here's a breakdown of the consumption and what oil I was using:
ODO 1000mi, Conventional 5W30, 1 quart per 1500 miles.
ODO 2700mi, Conventional 5W30, 1 quart per 1600 miles.
ODO 5000mi, Mobil 1 5W30, 1 quart per 2200 miles.
ODO 6500mi, Mobil 1 5W30, 1 quart per 3750 miles.
In addition, I have not changed my driving habits. If anything, I have
driven the car harder during this last consumption test, and the oil
consumption keeps decreasing. I really don't think it is the piston
rings breaking in, because that should have happened well before 7,000
miles on the ODO.
![Confused](https://my350z.com/forum/images/smilies/confused.gif)
I allways use the same Chevron 92 octane gas.
Does anyone have any ideas as to what might be happening? Im extremely
happy with the results, but I don't understand why.
![](https://my350z.com/forum/images/smilies/icon38.gif)
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