VRP Testing for the Long Haul- Cadillac 3.6

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Feb 25, 2024
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I finally decided to hop on the VRP "trend". Many of you are using it with great success to solve various engine problems (oil burning, noises, sludge removal etc). I am using VRP because it has been out for a while now and has shown itself to be a fantastic general use oil in addition to actually doing the cleaning it is advertised to do. Myself and many others thought at first that this was a "use it, get rid of it" type of oil. An oil that would cause problems if used long term, an oil that was only meant for cleaning and should be no longer used after the cleaning is done. But with the many UOAs and tons of engines this oil has been used in that doesn't seem to be the case. To this day I have not heard of VRP causing an engine failure. That alone is quite impressive and shows the amount of engineering into this product. A mass produced mass marketed oil targeted at cleaning your engine... without destroying your engine and ending up being a total product failure with lawsuits on top of lawsuits for the manufacturer.

Full disclosure: I'm not using this oil to solve oil burning. If you're looking for another VRP success story you can find that in many other posts on here. I'm using VRP for the "Protect" rather than the "Restore" function. My Cadillac CTS with the 3.6 LFX uses no oil in a 5K OCI. My most recent OCI prior to VRP was with M1 ESP 0W30. A fantastic oil that probably does a good bit of what VRP does.

My goal with this oil is simple: How far can I go before this engine gets tired? I'm never selling this car, and at 62 I'm in no shape physically or mentally to swap an engine on a modern car with a million little connectors. If this oil can reverse deposit buildup, in theory it should be able to prevent them from ever occurring if used on a clean engine.

I used to be in the camp of "If you're doing 5K OCIs pick any full synthetic and you're good to go". I've read countless stories on here of people doing that and still ending up with oil burning and other issues. A 5K OCI with FS oil is fantastic maintenance, why are people still ending up with oil burners and other issues? VRP to the rescue it seems. It is clear that this is the most revolutionary oil we've seen in decades.

The purpose of this thread is to track my use of VRP with 5K OCIs as my engine climbs into high mile territory (I'm aware 75k+ is technically high miles but for many of us BITOGers high miles starts much later).

What happens with long term use of this oil? Are problems on the horizon or is this engine going to hit 200k and beyond with spotless internals and 0 oil consumption? We'll have to find out...

Screenshot_20250702_073400_Gallery.webp
 
I, too, am in your camp....sort of. I bought my Acura 6 months ago with very low miles so my thought with immediately going with VRP was cleaning out any piston deposits (doubt it had any, but figured it didn't hurt to use it) and sludge/varnish by the previous owner doing 7500-ish miles which happened to be every 3 years on average. I posted a picture in another thread of VRP doing some cleaning of varnish visible right inside the oil cap. I'll try to find the pics and add them in another comment.
 
They already have a nice 0W-30 Euro with some nice approvals. A Restore & Protect of this would be my forever oil.


*Yes, yes, yes......I realize in my lowly car it won't make much difference but a VRP version of the Euro blend with 3.5 HTHS and those approvals would be awesome.

Valvoline.webp
 
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I run VRP in my 08 CTS with the LY7 3.6 with 60k on it. It’s my daily and it’s been great, no complaints.
 
I would have stayed with the ESP.
ESP is a great oil, possibly the best in M1's lineup. But VRP is truly something special. Keeping piston rings clean is a very important thing to me because clogged rings are only the start of major issues. Oil burning, catalytic converter poisoning, scored cylinder walls, combustion chamber soot/debris contaminating engine oil and wearing out all the moving parts in your engine. It's basically the start of your engine self destructing. I believe ESP will  keep rings clean but I don't know if it will  clean already dirty rings. VRP however has been proven time and time again to clean already dirty rings.
 
ESP is a great oil, possibly the best in M1's lineup. But VRP is truly something special. Keeping piston rings clean is a very important thing to me because clogged rings are only the start of major issues. Oil burning, catalytic converter poisoning, scored cylinder walls, combustion chamber soot/debris contaminating engine oil and wearing out all the moving parts in your engine. It's basically the start of your engine self destructing. I believe ESP will  keep rings clean but I don't know if it will  clean already dirty rings. VRP however has been proven time and time again to clean already dirty rings.
Good place to add without starting another VRP thread : I did my first run after changing oil in my Hyundai 2.4L FI engine from M1 0W30 to VRP 5W30 . This engine runs a little better on the VRP 5W30 (HTHS 3.2) than it did with M1 0W30 ESP (HTHS 3.5) . Better throttle response , more lively engine response on still somewhat cold oil using the VRP. Conversely , the M1 5W30 ESP felt like the engine was more cushioned at high speeds (above 65 MPH) and high RPM’s versus the VRP. I’ll continue with the VRP 5W30 in my 2.4L DI Theta II engine for at least 4 oil changes as the oil is neither too thin of too thick . The 5W30 VRP (HTHS 3.2) feels just about right for this engine in terms of engine responsiveness and low noise when pushing the engine .
 
FYI……Walmart.com has bay boxes of VRP 5W-30 for $113.99. You can get a further $20 off of that through the rebate program. Deadline for purchase is 07/31, and 08/31 for submittal. It’s a painless, quick process. Much smoother than the other rebates this year.

I bought boxes of 0W-20 and 5W-30. Looking forward to seeing how this works out.
 
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