re-build, how soon to change the oil?
08-14-2003, 02:49 PM
#4
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Re: re-build, how soo to change the oil? Stevie's recommendations sound good, because with a rebuild you're going to have a lot of assembly lube in there, so you want to make sure you get it all out quickly. And even after the first oil change, you'll still have some of it kicking around.
08-14-2003, 04:18 PM
#5
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Re: re-build, how soo to change the oil? I did mine at 30 miles (you wouldnt believe all the shavings and crap, my oil was grey) and Ill do it again at probably 100, 500, 1000, 3000.
You cant change it too much with a new engine!
You cant change it too much with a new engine!
08-14-2003, 10:09 PM
#7
TECH Fanatic
Re: re-build, how soo to change the oil? Here's the deal....
After a major engine rebuild, you will have a lot of **** in the motor for a short time.
At this point, don't waist your money on synthetics. Just fill it with regular "Dyno" Pennzoil 10-30 and run it about 300 miles. Dump the stuff out and refill it with more Pennzoil 10-30 dyno oil and a new filter. Run it another 1000 miles and change it again with synthetic Mobil 1 10-30 or what ever you want and then just stick with a normal drain schedule.
The cheap dyno-oil will be used to just flush out the motor. Once done, use whatever quality oil you are happy with.....
Now ..... Don't that make sense?
Ron,
After a major engine rebuild, you will have a lot of **** in the motor for a short time.
At this point, don't waist your money on synthetics. Just fill it with regular "Dyno" Pennzoil 10-30 and run it about 300 miles. Dump the stuff out and refill it with more Pennzoil 10-30 dyno oil and a new filter. Run it another 1000 miles and change it again with synthetic Mobil 1 10-30 or what ever you want and then just stick with a normal drain schedule.
The cheap dyno-oil will be used to just flush out the motor. Once done, use whatever quality oil you are happy with.....
Now ..... Don't that make sense?
Ron,
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08-14-2003, 10:25 PM
#8
TECH Fanatic
Re: re-build, how soo to change the oil? Just a thought.....
A lot of folks like to put that extra slippery synthetic oil in the motor as soon as they take it home from the dealership.
Well, in a "I love my new car" .. "True Love" situation, that just seems to be the right thing to do.
Let me tell you one thing... Pure synthetics when used from day one don't always allow for the ring pack to seal properly to the cylinder wall surface.
Point in fact .... My old 98 TA .... I ran Pennzoil dyno 10-30 in the motor for the first 8,000 miles of it's life. Then switched to Mobil 1 10-30. To this day, this 98 TA will only use 1/4 quart of oil every 4,000 miles between changes. (and I am convinced this little oil is going thru the PCV since the TB will get wet with oil over a period of time)
I don't care what anybody says, I still think that the old dyno oil, if used from day-one, allows for better ring/cylinder seal. Once an absolute seal has been established, the synthetic oils then can be used to insure a long engine life....
Just my opinion folks....
Ron,
A lot of folks like to put that extra slippery synthetic oil in the motor as soon as they take it home from the dealership.
Well, in a "I love my new car" .. "True Love" situation, that just seems to be the right thing to do.
Let me tell you one thing... Pure synthetics when used from day one don't always allow for the ring pack to seal properly to the cylinder wall surface.
Point in fact .... My old 98 TA .... I ran Pennzoil dyno 10-30 in the motor for the first 8,000 miles of it's life. Then switched to Mobil 1 10-30. To this day, this 98 TA will only use 1/4 quart of oil every 4,000 miles between changes. (and I am convinced this little oil is going thru the PCV since the TB will get wet with oil over a period of time)
I don't care what anybody says, I still think that the old dyno oil, if used from day-one, allows for better ring/cylinder seal. Once an absolute seal has been established, the synthetic oils then can be used to insure a long engine life....
Just my opinion folks....
Ron,
08-15-2003, 06:33 PM
#10
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Re: re-build, how soo to change the oil?
Just a thought.....
A lot of folks like to put that extra slippery synthetic oil in the motor as soon as they take it home from the dealership.
Well, in a "I love my new car" .. "True Love" situation, that just seems to be the right thing to do.
Let me tell you one thing... Pure synthetics when used from day one don't always allow for the ring pack to seal properly to the cylinder wall surface.
Point in fact .... My old 98 TA .... I ran Pennzoil dyno 10-30 in the motor for the first 8,000 miles of it's life. Then switched to Mobil 1 10-30. To this day, this 98 TA will only use 1/4 quart of oil every 4,000 miles between changes. (and I am convinced this little oil is going thru the PCV since the TB will get wet with oil over a period of time)
I don't care what anybody says, I still think that the old dyno oil, if used from day-one, allows for better ring/cylinder seal. Once an absolute seal has been established, the synthetic oils then can be used to insure a long engine life....
Just my opinion folks....
Ron,
A lot of folks like to put that extra slippery synthetic oil in the motor as soon as they take it home from the dealership.
Well, in a "I love my new car" .. "True Love" situation, that just seems to be the right thing to do.
Let me tell you one thing... Pure synthetics when used from day one don't always allow for the ring pack to seal properly to the cylinder wall surface.
Point in fact .... My old 98 TA .... I ran Pennzoil dyno 10-30 in the motor for the first 8,000 miles of it's life. Then switched to Mobil 1 10-30. To this day, this 98 TA will only use 1/4 quart of oil every 4,000 miles between changes. (and I am convinced this little oil is going thru the PCV since the TB will get wet with oil over a period of time)
I don't care what anybody says, I still think that the old dyno oil, if used from day-one, allows for better ring/cylinder seal. Once an absolute seal has been established, the synthetic oils then can be used to insure a long engine life....
Just my opinion folks....
Ron,
Good info that people over look.. Definately dino oil for the first 1500 miles at least!
08-15-2003, 07:34 PM
#11
TECH Senior Member
Re: re-build, how soo to change the oil? Synthetics aren't more slippery than dino oil though, that's an old wive's tale.
The only reason not to use synthetic in a new engine is that it's too costly when you're dumping it out so often.
If synthetics were more slippery and didn't allow engine's to break in, all the Corvette engines made in the last 10 years would've had a problem.
The only reason not to use synthetic in a new engine is that it's too costly when you're dumping it out so often.
If synthetics were more slippery and didn't allow engine's to break in, all the Corvette engines made in the last 10 years would've had a problem.
08-17-2003, 08:28 AM
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Re: re-build, how soo to change the oil?
You cant change it too much with a new engine!
08-17-2003, 08:33 PM
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Re: re-build, how soo to change the oil? I changed it at 20 - 100 - 500. Just used regular Castrol oil and some Lucas additive. You get the most metal dust from the rings seating which mainly happens in the first 20 miles while there is still a good cross hatch in the cylinder walls.
