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Topic: Car question..help!
caamken's photo
Sun 05/25/08 06:47 AM
the information given above is true

their is a special procedure to change from conventional oil to synthetic

it is a flushing process to remove all old oil and residue out of you motor to get max performance out of the synthetic.

each manufacture has a procedure to do so. Their is an additive to put in your oil prior to the change. then after the first change you only run the new synthetic for a few hundred miles then change it again to remove all old oil residue

the 2 oils are not made to be mixed and can cause damage to internal motor components

njmom05's photo
Sun 05/25/08 06:50 AM

the information given above is true

their is a special procedure to change from conventional oil to synthetic

it is a flushing process to remove all old oil and residue out of you motor to get max performance out of the synthetic.

each manufacture has a procedure to do so. Their is an additive to put in your oil prior to the change. then after the first change you only run the new synthetic for a few hundred miles then change it again to remove all old oil residue

the 2 oils are not made to be mixed and can cause damage to internal motor components


I asked him if it would matter, he said, nah as long as they are taking one out and replacing with another it'll be fine. Umm..duh guess not.

oldsage's photo
Sun 05/25/08 07:56 AM
Synthetic & regular oil can be mixed.
Trucking fleet have been doing it for yrs.
Find a good mechanic & listen to him.
Most likely sender or wiring.
40 yrs of wrench bending & synthetic is the best oil to use for long engine life.
Fleets have proven it, TRUCK engines running 1.5 mil. miles & no major breakdowns.
Idle hrs not included.
Do your diligence before condeming things.

caamken's photo
Sun 05/25/08 03:02 PM

Synthetic & regular oil can be mixed.
Trucking fleet have been doing it for yrs.
Find a good mechanic & listen to him.
Most likely sender or wiring.
40 yrs of wrench bending & synthetic is the best oil to use for long engine life.
Fleets have proven it, TRUCK engines running 1.5 mil. miles & no major breakdowns.
Idle hrs not included.
Do your diligence before condeming things.
not argueing that synthetic is much better than conventional oil. Deisel vs gas engines are a bit different. Not really gonna go their

I don't design the engines. I design the components that go around the motors. Just know what the engineers next to me say that do all the FEA's on the motors

No1sLove's photo
Sun 05/25/08 03:10 PM


Let me give you what little knowledge I have:

DON'T put synthetic oil in an engine that has a lot of miles on it when it has not been running synthetic since it was a baby. (Low mileage, new car)

The changeover can be bad. It will cause more problems with the motor than you realize. Take out the synthetic, and run the same oil you have been the whole life of the car.

If you use say, Valvoline 10W30, then every time you change the oil, or fill it just with a quart, fill it with the same oil, Valvoline 10W30, or whatever you use. ALWAYS USE THE SAME OIL. (Brand, type, etc.)

This is not as true today as it is back when your car was made, but if you are driving an '03, you probably have some good miles on it and should heed my advice.

Hope this helps.

-Roger


Agreed....What happens is on a high mileage vehicle, is the internal seals (rubber) are well broken in...Then when you add synthetic on top of it you can count on some near future oil leaks...

As long as you change your oil like you should at said intervals you will be fine....

Synthetic oil will reduce engine heat and friction. in turn giving longer life and better performance, as well to help with gas mileage. But it should be started from the gitgo
I had a situation like that, where the mechanic told me switching to synthetic had cleaned out some gunk that had been sealing my works...is that true...can that happen?

No1sLove's photo
Sun 05/25/08 03:12 PM

the information given above is true

their is a special procedure to change from conventional oil to synthetic

it is a flushing process to remove all old oil and residue out of you motor to get max performance out of the synthetic.

each manufacture has a procedure to do so. Their is an additive to put in your oil prior to the change. then after the first change you only run the new synthetic for a few hundred miles then change it again to remove all old oil residue

the 2 oils are not made to be mixed and can cause damage to internal motor components
That's what they did to my diesel too...flushed it first. Hey (((caamken))) happy Glad to hear someone had me do something right for a change. laugh

njmom05's photo
Sun 05/25/08 03:52 PM
Thanks everyone I really appreciate your feedback and help today!!! Have a safe and happy holiday weekend to all!

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