Quote:
Originally Posted by David70
1st video is complete marketing, 2nd video completely independent, 3rd was a tour and explanation of why it's great but all from Valvoline. Independent video showed a 2008 F150, unknown miles or history, tons of sludge in the engine that came out with the oil. 1994 Camry didn't have much come out of it. Interesting that with the F150 he recommended a case of oil filters and replace them every 300 miles but the 3rd video Valvoline says (15:00 in) their oil won't remove sludge fast enough to clog the filter.
There are tons of oil cleaning additives on the market (Liqui Moly, Seafoam, other), with the Camry being 30 years old, well maintained and showing it's clean, I won't buy this oil as I don't have a car close to this old and also maintain mine in a similar way.
All the different additives and extra cleaners seem suspect to me as they are assuming what comes standard isn't good enough. Like using 2x the soap to wash your hands, if they come out clean you don't need more soap.
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Yes, there is some contradiction with the claimed slow-working cleaning through 4 oil changes and normal oil filter replacement intervals...vs the independent findings. I assume that each car has different level of sludge/dirt/deposits, and a car that is saturated with deposits will obviously accumulate a lot more sludge faster with this Valvoline oil vs a car that has average/normal deposits. So keeping an eye on the oil filter or the oil itself (which hard since my BMW does not have a dip stick) is important in the first 500-2000 miles of use of this Valvoline oil.
The problem with the oil additives are two fold...IMHO. And you would need a lab and long professional level observation, because the results differ from car to car and from base oil to base oil.
First is what you also pointed out: why use this Valvoline oil, if the OEM spec oil already supposed to clean your engine/keep it clean. So if you used that OEM spec oil and changed it at reasonable intervals...your engine should be clean.
Second is that oil additives may add positive effect to OEM oil in some engines, while negative in others when using different base oils. The chemicals in the oil additive may work in a synergic way with the base oil and lead to excellent cleaning...while it could also destroy the base oil's protective/detergent/lubricating qualities in other situations.