Top end oil change ?

[NCHornet]

Why did someone dig up this thread, it was better off to just let it die!! What hasn't been mentioned up til now is that doing this Top End Oil Change is a excellent way to introduce air into your HPO system, so when you can't get her to start, or she runs like a dog, don't ask me why!!!

NCH

[SCUFFY828]

ive tried to tell them kevin, noone seems to want to listen, and the fact that the other 2 quarts left in the oil rails and injectors , what to do with that

[00SVTStrike]

Whats the procedure for "bleeding" the HPOP system?

You think air isnt introduced when you pull the drain plug?

You think air isnt introduced when you pull the filter?

You think their isnt already air IN the engine?

What does the engine do with that air?....It ends up leaving by way of crancase ventilation. Since the oil system is ALL one unit as everyone keeps repeating, isnt it logical that air will work its way out to the crancase?

You would have to leave a ton of air in there for it to not start.

[Dave]

Doing the top end oil change is a waste of time. Besides it may not cause a no start. But it can and will cause a hard start.

[lowstroke]

Wouldn't it make more sense to install a bypass oil filtration system like the FS-2500?

[OregonStroker]

Originally Posted by moore20017.3

This is BS. The high pressure oil system is an OPEN loop hydraulic circut. This means that the oil is constantly feed up from LPOP to HPOP and forced through high pressure oil rails and dumped back to pan. If this was a closed loop system (like a log splitter for example) that uses the same oil in a closed loop then this would help. It would be better, and I have heard of poeple doing this, to change oil and then run it for an hour or two and drain it. Then refill and go. This helps to "wash out the residual oil in the HPOP and system.
I have heard of this helping with cold starts but with oil as high as it is I won't be wasting it. LOL

I have 270,000 miles on all eight stock injectors. Starts fine still.

umm ya, I think if you change your oil every 3000 with some good old dello400 your engine will last for ever. Kinda anal to make work out of a redundant issue.

[00SVTStrike]

To the nay sayers, explain me one thing?

Before I decided to do the "top end change", I did a regular oil change when I first got the truck, and then I pulled some oil from the reservoir and compared it to the dipstick oil, the oil from the reservoir was really alot darker than the oil from the pan when compared on a clean white rag.... Wouldnt you have to agree this shows that in fact the oil does not drain back well enough to circulate the top end oil?

That simple comparison was my reasoning to do it...

[Soaggydogg]

Originally Posted by Dave

Doing the top end oil change is a waste of time. Besides it may not cause a no start. But it can and will cause a hard start.

Originally Posted by 19558077

WELL REGUARDLESS OF THE SO CALLED BS. I WILL BE DOING THE TOP END CHANGE, AND MY TRANSMISSION WILL BE FLUSHED WITH FILTER CHANGE, TRANNY'S ARE FLUSHED TO GET THE CRAP OUT OF THE MODULATOR VALVE. SO WOULDNT THE TOP END CHANGE BE DOING THE SAME THING. NO OFFENSE TO ANYBODY, BUT IF IM GONNA SPEND THE MONEY AND TIME FOR AMSOIL I JUST AS WELL TAKE ANOTHER 1/2 HOUR AND GET THE CRAP OUT OF THE HPOP RESIVIOR AND THE HIGH PRESSURE RAILS, I DONT WANT THE CRAP IN THE FRESH OIL. YES I KNOW IT GOES INTO THE PAN BUT IT WOULD BE LIKE CHANGING THE OIL AND NOT THE FILTER. CALL ME AN IDIOT IF YA WANT BUT AT LEAST I'LL HAVE CLEAN OIL

Using Crap and Amsoil in the same sentence is appropriate.

Depending on how you flush a transmission it can be good or bad for it.

I suck the reservoir dry but I also fill it up so the truck starts easier. It is just a habit I got into a while ago thanks to OCD. I figure the more old oil I can drain out and replace with fresh oil is better.

Besides what my guy's videos... they're G-R-E-A-T!!

[SCUFFY828]

Originally Posted by 19558077

WELL REGUARDLESS OF THE SO CALLED BS. I WILL BE DOING THE TOP END CHANGE, AND MY TRANSMISSION WILL BE FLUSHED WITH FILTER CHANGE, TRANNY'S ARE FLUSHED TO GET THE CRAP OUT OF THE MODULATOR VALVE. SO WOULDNT THE TOP END CHANGE BE DOING THE SAME THING. NO OFFENSE TO ANYBODY, BUT IF IM GONNA SPEND THE MONEY AND TIME FOR AMSOIL I JUST AS WELL TAKE ANOTHER 1/2 HOUR AND GET THE CRAP OUT OF THE HPOP RESIVIOR AND THE HIGH PRESSURE RAILS, I DONT WANT THE CRAP IN THE FRESH OIL. YES I KNOW IT GOES INTO THE PAN BUT IT WOULD BE LIKE CHANGING THE OIL AND NOT THE FILTER. CALL ME AN IDIOT IF YA WANT BUT AT LEAST I'LL HAVE CLEAN OIL

you will still not get it out of the rails for the record , just a little out of the reservoir , that is my point , you can suck al day and still not get all the oil out

Originally Posted by 00SVTStrike

To the nay sayers, explain me one thing?

Before I decided to do the "top end change", I did a regular oil change when I first got the truck, and then I pulled some oil from the reservoir and compared it to the dipstick oil, the oil from the reservoir was really alot darker than the oil from the pan when compared on a clean white rag.... Wouldnt you have to agree this shows that in fact the oil does not drain back well enough to circulate the top end oil?

That simple comparison was my reasoning to do it...

Originally Posted by Soaggydogg

Using Crap and Amsoil in the same sentence is appropriate.

thats the truest statement ive seen in this entire thread

[metallitera]

there was a write on up here i think, or at least a link to it about flushing. basically envolved takin the return line from the tranny and puttin it in a drain pan and have someone keep addin fluid while the other cycled through the gears until fluid turned pretty.

also, the method most, at least i am doing is sucking a qt out and refilling with clean a total of 3 or 4 times, running engine in between. will not get 100% of the oil out but sure as hell will help.