I have run it in two cars for years. Both have 150,000 plus miles.
Neither burns more than a quart between changes, neither motor
leaks a drop of oil, both still sound like when they had 50,000.
I like Valvoline.
My main beef with the blends is the financial rip-off involved. Add a
few drops of Group III 'synthetic' to a conventional 99 cent a bottle
motor oil and you get to charge WAY more for it, with the product not
being enough better for anybody to notice.
In my view, if the percentage of synthetic in a 'blend' was
significant enough to matter, the maker would boast about it on the
label. None do.
I am a fan of real Group IV PAO full synthetics like Mobil1 in
situations where they give some benefit, like extreme hot/cold,
trailer towing or extended drain intervals.
> Where you live makes a * big * difference You've got both
extremes. I've used Mobil 1 for years, and would never go back to
conventional oil. Same is true for synthetic trans fluid, laughs off
heat that turns conventional trans fluid into trans killing fluid.
Synthetics don't turn to goo when temp drops, or re refine
themselves into vapor and sludge when the Mercury soars.
Sometimes you can determine the amount of 'synthetic' component in a
blended oil by looking at its material safety data sheet, but for
practical purposes, you really can't tell what you are getting with a
blend unless you look at its physical and chemical properties.
I have a database of over 200 hundred oils which shows that blends
usually rank higher (but not by much) than petroleums using a composite
score of their properties. But, individual properties, such as pour
point, show that neither type is always superior for any individual
As a suggestion, I'd wait for a good sale on a full synthetic, be it
Group III or Group IV and stock up, otherwise I'd look at the petroleum
high mileage oils if applicable. The high mileage petros are actually
pretty good oil.
Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here.
All logos and trade names are the property of their respective owners.