Just wondering, since the PCV system is continuously dumping oil vapor into the air intake. Any reports or claims of Valvoline Restore and Protect vapors helping with DI intake valve deposits? Seems like Valvoline Restore and Protect in the crankcase would be a lot easier than walnut shell blasting.
Does Valvoline Restore and Protect help with DI intake deposits?
- Thread starter Aston4
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Be nice if it did. I floated a thought a couple years back that I'd hoped someone would engineer an oil additive that was designed to boil off, go through the PCV system and attack the back of the intake valves.
You get DI intake valve deposit from oil that gets past the valve stem seals combined with crud that comes through the PCV system along with impurities from the intake that get past the air filter. And then there is no gasoline to wash all that down into the combustion chamber. Yes, it should help. Installing a catch can also helps... a little, but not much. Best option: do a GDI cleaning with one of those PEA based IVD deposit cleaners (there are a few) and then use Vavlone Valvoline Restore and Protect. That would be the most sensible option.
If it's able to soften deposits inside an engine I would say in the Long Long Term it would keep intake runner deposits slightly softer where intake cleaners could have more effect. There's really nothing to lose by running Valvoline Restore and Protect, but again, I wouldn't expect noticeable results with
any kind of short timeframe. Would be very hard to quantify.
any kind of short timeframe. Would be very hard to quantify.
In theory it will clean anything it touches…
One can argue that if you have a brand new car, or a clean engine to begin with, it can clean your wallet without touching it. No?
It’s the same price as most mid tier oils so no harm no foul. At best it helps. At worst it’s still oil.One can argue that if you have a brand new car, or a clean engine to begin with, it can clean your wallet without touching it. No?
Hopefully it's not harsh on seals or anything else. There are many threads and pages and pages of info and I'm sure it has been discussed but too much info to keep up with ...
I do use a lot of Valvoline products like engine oil, gear oil, ATF, brake fluid, power steering fluid, etc. so nothing against them.
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Yeah I’ve argued such. As we don’t know for certain right now. Anecdotally it appears it may potentially eat up the coating on the black Toyota OEM oil drain plug gaskets… still doing some testing on that. Not sure it matters much though
4wd
$50 site donor 2026
Had to put it in my stash 4 times before the shop looked cleaner …
(That - and my buddy coming over) …
At about the 12 minute mark in this video, the Valvoline guys says that the main cleaning is piston deposits, but it may help with intake valve deposits via the PVC system.
Yes it does. But does nothing for DI.
I have seen Valvoline Restore and Protect clean the metal intake manifold on oil change #2 of a port injected engine with egr, anywhere there was oil collected. It was bright and shiny clean. I have no doubt over time and many oil miles this manifold would have been completely cleaned
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