Valvoline Restore & Protect cons?

[Hohn]

View attachment 292502

MMM, great idea!

 

[Carlostrece]

No but it doesn't seem very shear stable, and combined with fuel dilution I see it dropping well below 3.0 in use. If it was shear stable I would be content with 3.2 cP

Buy the next higher grade.

 

[Carlostrece]

Lakespeed has a video about how choice of gas brand affects piston rings and cylinder wear. His tests showed that choice of gas brand does affect wear.

I wonder if, or how, choice of fuel also affects cleanliness of rings.

 

[tired]

Buy the next higher grade.

Unless you live in Australia, there is no higher grade.

 

[Carlostrece]

Unless you live in Australia, there is no higher grade.

There's a thicker grade for my purposes. My neighbors 03 Honda CR-V has been having Maxlife Blend 5w20 go through it like through a goose. I suspect it's burning oil, but I still haven't conclusively diagnosed it. I'm going to put VRP 5w30 in it. For her CR-V 5w30 is a higher grade.

However, I understand what you mean. There's no VRP grade higher than 5w30 in USA.

 

[tired]

There's a thicker grade for my purposes. My neighbors 03 Honda CR-V has been having Maxlife Blend 5w20 go through it like through a goose. I suspect it's burning oil, but I still haven't conclusively diagnosed it. I'm going to put VRP 5w30 in it. For her CR-V 5w30 is a higher grade.

However, I understand what you mean. There's no VRP grade higher than 5w30 in USA.

Grades lower than SAE 30 don't exist to me

 

[ChrisD46]

Indeed, the the "I do cars" teardown of a pristine Honda K20c4 caught my attention because the engine was immaculate all the way through the teardown-- until he actually got the pistons out and found the stuck oil rings-in less than 100k miles. Seriously, it took physically removing the pistons to identify any potential reason the engine was removed from service. The rest of the engine was utterly immaculate with zero deposit residue anywhere.

The evidence is strongly suggesting to me that cleanliness of the ring pack is perhaps the single most important property of an oil in terms of how it affects the engine's life. Because if you Pareto out the reason why engines leave service, the first and largest factor BY FAR is "oil consumption". And what's the largest cause of oil consumption? Piston/ring deposits.

VRP is the right product at the right time, notwithstanding the naysayers.

What is an eye opener here is that you can have a pristine engine inside - but if you have piston / piston ring deposits (as this K24 engine has) your engine from this carbon deposit situation alone could fail . It’s nice that VRP can remove sludge and varnish but VRP’s ability to clean piston and oil ring carbon deposits is really , really key .

 

[dkryan]

What is an eye opener here is that you can have a pristine engine inside - but if you have piston / piston ring deposits (as this K24 engine has) your engine from this carbon deposit situation alone could fail . It’s nice that VRP can remove sludge and varnish but VRP’s ability to clean piston and oil ring carbon deposits is really , really key .

Good point!

As we BITOGers sit with popcorn in hand waiting for the other motor oil manufacturers to offer a similarly performing product.

I believe it’s simply a matter of time.