Valvoline Restore and Protect in a car with leaking valve seats

[2000fordfocus]

let me start by saying i think Valvoline Restore and Protect is an amazing product and i plan to use it in my other vehicles for future oil changes because i don’t believe they will have any problems. however, i have a 2001 Ford Taurus, OHV 3.0L Vulcan with 257,000 miles. it developed leaking valve seats (I’m assuming in cyl 4 and 5 because those are the misfire codes i get) and started showing symptoms about 25,000 miles ago. it drives fine but it has a misfire at idle that gets worse if you leave it sit for a few minutes.

so my question is: did i mess up putting Valvoline Restore and Protect in this car? would the cleaning of carbon deposits on the valves possibly decrease the already low compression? it has 600 miles on the oil now and it seems fine, but I’m just concerned. i admittedly should’ve asked this before i used it in the engine but it’s better late than never i suppose

 

[Propflux01]

So you put this Valvoline Restore and Protect in your engine over 25K ago, and you think it is causing the misfire? Am I correct with this? If so have you pulled the plugs on this to see if they are fouled? I don't see how the oil would cause a leaky valve unless it was from a carbon particle that somehow got dislodged and remained for the last 25K on the valve seat. I think you have another issue going on here, rather than the oil.

 

[2000fordfocus]

So you put this R&P in your engine over 25K ago, and you think it is causing the misfire? Am I correct with this? If so have you pulled the plugs on this to see if they are fouled? I don't see how the oil would cause a leaky valve unless it was from a carbon particle that somehow got dislodged and remained for the last 25K on the valve seat. I think you have another issue going on here, rather than the oil.

i’m sorry if the way i wrote it wasn’t very clear, that’s my bad. i put restore and protect in this engine 600 miles ago, first time ever using this oil. the car has had the leaky valve issue for 25,000 miles/2years now, not related to the restore and protect at all. i’m just wondering if there are deposits that are somewhat keeping the valves sealed, and if the restore and protect will clean those off which will create an even bigger leak. spark plugs are fine, i replaced those recently too

 

[FowVay]

If it were me... I'd take the heads off of the engine and carry them to my local machine shop and ask if they'd do a valve job on them.

The motor oil that you're using isn't really of much concern with regard to the engine problem that you say is related to valve seat issues.

You need a valve job... not a Valvoline job.

 

[Trav]

At 257K I wouldn't bother doing much to this engine, maybe throw something like this in there with 78K for 5 bills.

https://www.ebay.com/itm/284356807430

 

[AZjeff]

You need a valve job... not a Valvoline job.

Maybe not cost effective on a 24 YO 257k mile Taurus.

 

[Johnny248]

let me start by saying i think Valvoline Restore and Protect is an amazing product and i plan to use it in my other vehicles for future oil changes because i don’t believe they will have any problems. however, i have a 2001 Ford Taurus, OHV 3.0L Vulcan with 257,000 miles. it developed leaking valve seats (I’m assuming in cyl 4 and 5 because those are the misfire codes i get) and started showing symptoms about 25,000 miles ago. it drives fine but it has a misfire at idle that gets worse if you leave it sit for a few minutes.

so my question is: did i mess up putting Valvoline Restore and Protect in this car? would the cleaning of carbon deposits on the valves possibly decrease the already low compression? it has 600 miles on the oil now and it seems fine, but I’m just concerned. i admittedly should’ve asked this before i used it in the engine but it’s better late than never i suppose

Have you done a leak down? I would start there.

 

[Jetronic]

no, you didn't mess up. VRP won't make the leaking valves worse. Might not make it better either.

 

[Bubblewhale]

I'm not sure if R&P caused the leaking valve seals on my 05 Camry with 2AZ-FE, but I started to notice it a lot more after I used R&P. Got the blue smoke on start up, and can see it in my rear view mirror.

Either way, considering it's at 253K, I'm not really going to deal getting the valve seals unless the engine is toast or smog fails. The engine has been running a lot more smoother and less shaking since I'd used R&P though.

 

[GI_GRIFF]

Try this particular snake oil, softening/sealing leaky valve seals is one of its missions in life. Doesn't cost much if it fails. Follow the directions on the can. https://www.amazon.com/Liqui-Moly-2...1&sprefix=Motor+Oil+Saver,aps,155&sr=8-2&th=1

 

[Brian123]

let me start by saying i think Valvoline Restore and Protect is an amazing product and i plan to use it in my other vehicles for future oil changes because i don’t believe they will have any problems. however, i have a 2001 Ford Taurus, OHV 3.0L Vulcan with 257,000 miles. it developed leaking valve seats (I’m assuming in cyl 4 and 5 because those are the misfire codes i get) and started showing symptoms about 25,000 miles ago. it drives fine but it has a misfire at idle that gets worse if you leave it sit for a few minutes.

so my question is: did i mess up putting Valvoline Restore and Protect in this car? would the cleaning of carbon deposits on the valves possibly decrease the already low compression? it has 600 miles on the oil now and it seems fine, but I’m just concerned. i admittedly should’ve asked this before i used it in the engine but it’s better late than never i suppose

Valvoline Restore and Protect has a very good chance of helping you out. This will take some time, keep using this oil, at least for 3 more OCI's.
If you are not the original owner, when did you buy this vehicle and while you have had this car what are your OCI's and what oils have you been using?

 

[2000fordfocus]

Valvoline Restore and Protect has a very good chance of helping you out. This will take some time, keep using this oil, at least for 3 more OCI's.
If you are not the original owner, when did you buy this vehicle and while you have had this car what are your OCI's and what oils have you been using?

i have been doing 3k intervals since i got it with 231k, before that it rarely got serviced or driven at all as it was my grandparents’ extra car for about 10 years. i hope you are right because i’ve been seeing mixed results

 

[2000fordfocus]

let me also say that i’m not expecting a miracle out of this oil, i was just wondering if it would make the valve seat leak worse, better, or have no effect. the idea being that any sort of sludge or carbon built up might be helping seal the leaking valves, and the oil’s cleaning properties might compromise that and make the leak more noticeable.

 

[PontiacHO]

If the valves aren’t seating due to carbon buildup on the valves, oil isn’t going to help. You’re better off trying some brew poured in the intake (via a vacuum port etc.). Most likely those valves are now burnt.

 

[jimmyjamesndt]

Could be as simple as fouled or worn out spark plugs, screw them out and inspect, install new plugs.

 

[Brian123]

i have been doing 3k intervals since i got it with 231k, before that it rarely got serviced or driven at all as it was my grandparents’ extra car for about 10 years. i hope you are right because i’ve been seeing mixed results

It sounds like you need to replace the Spark Plugs and if this car has Spark Plug Wires or Coils, they need to be replaced. Make sure you do not have an Electrical problem. Clean the Throttle Body, make sure the MAF Sensor is clean. Change the Fuel Filter and use a good Fuel Injection Cleaner like Redline or Techron.
VRP is the only oil that has the chance of helping you out on the oil side. This car was treated a certain way for 231K, it is what it is, this will take time.
I would also look up why you are getting misfire codes, again the Fuel Injectors and there is also the Fuel Pump. Did the car sit a lot like more than a year or so? Was the car ran with less than 1/4 of a tank of gas?
Do you know what oil was being used and what the OCI's were? You might not know that, if you do not know that then VRP is going to need to be used for as long as you have this car.

 

[Mainia]

If the valves aren’t seating due to carbon buildup on the valves, oil isn’t going to help. You’re better off trying some brew poured in the intake (via a vacuum port etc.). Most likely those valves are now burnt.

Wait, that might not be the case. The Valvoline engineer on Youtube interview commenting on VRP might help GDI intake valve clean to a very micro degree, through PVC fog and valve guide leakage.

 

[Brian123]

Wait, that might not be the case. The Valvoline engineer on Youtube interview commenting on VRP might help GDI intake valve clean to a very micro degree, through PVC fog and valve guide leakage.

The OP does not have a GDI Engine, let's see what happens with the old school Multi Port Fuel Injection!

 

[Sequoiasoon]

I think the discussions are back and forth on issue. OP says thinks valve seaTs which to me would be where the valves seal as metal against the head. Carbon on them may get in the way of good seal. Oil might not help much. Since port injected some BG44k, SL1, Techron etc for a couple tanks may help. having a service done where they hook directly to fuel line with pressurized setup may help. Doing an intake type cleaning through TB, vacuum like a seafoam type or heads off walnut shell blast

Others I think are on valve seaLs keeping oil from dripping down. Dripping overnight, blue smoke at start up. Something motor oil saver, a high mileage oil, ATP205 might help with as well as some other oil formulations.

 

[fantastic]

Ignition coils bad? Try to throw some parts at it and continue to run this Restore oil. You've not done anything wrong though.