Hello,
What is the best synthetic motor oil for the price. I tried a few brands and want Scotty’s opinion?
Thanks!
Any oil that meets the certification specified in your owner's manual is the best oil.
The best price for that oil... Amazon Basics or Costco Kirkland
Anybody get either of these tested by a lab?
when the oil has a badge on it, it means it's lab tested. The car makers make sure of that. The oil producer has to pay a license to them to use the badge.
I've been using Wal-Mart Super Tech synthetic for some time with no problems.
Anything but AMS Oil and Royal Purple, unless you just like to light your money on fire. Then it doesn't matter.
I've always used Mobil 1 Full Synthetic and it's been fantastic. Synthetic oils are all made well these days, even Kendall. Save your money on lab testing. People OBSESS over their oil and some guys I know ship out samples to Blackstone every oil change. They have their oil checked more than they have their blood checked. Absolutely no point unless you are having problems and need information.
See below as well, but I’ve always bought the Mobil 1 Full Synthetic from Costco.
https://carkiller.com/scottykilmer/qa/best-oil-brand/#post-49228
https://m.youtube.com/watch?v=IViuSGdbDHM
https://m.youtube.com/watch?v=Ye-5EyrwkOQ
Just make sure to stay on top of your oil change intervals, and don’t skimp when it comes to the oil filter. You want to buy a premium oil filter.
Amsoil, hands down. But that’s a 100% synthetic oil.
But if you change your oil often enough, probably any off the shelf full synthetic oil and a decent oil filter will be good enough. Try to find a sale on oil.
That’s Amsoil SIGNATURE SERIES oil, not their cheaper oils. Honestly, one of their cheaper oils might not even be as good as Pennzoil Platinum oil. (At least according to a cold flow test that Synthetic Oil Protection (Eben) on YouTube did.)
A M S O I L
I’m running Amsoil signature series with their 25,000 mile oil filter (which I just changed at 5,000 miles into it), up to 10,000 miles n my 2007 Ford Ranger 4.0 SOHC. I’ll probably send a sample to Blackstone labs at 10,000 miles. But the oil is SAID to be good UP TO 25,000 miles. And there’s people on YouTube claiming they’ve gone 26,000 or more and 13 months or more with that oil, had it tested and it was still ok.
California state fleet testing also had similar results. But if their engines break, taxpayers will buy them new ones. Who will buy me a new truck?
We see all the time how crappy engines can be these days. oil burning. oil starvation. catching fire ....
If the oil is good, meaning thoroughly lab tested, it’s good. Period. BUT, if your driving habits change, that could effect that.
it could all be fine until one day you're driving along , and an oil clot block a tiny artery for valve phasing or somethign and, 
Carbon from using cheap oil.
carbon is usually the flaky stuff found around the intake, combustion chamber, and exhaust. worn out oil turns to sludge.
Which is basically carbon in its liquidated form. It’s important to exfiltrate the molecules, to prolong engine life. I use big words cause I’m smarter than you. Just the way I am. 🧐😃😆
I need to embiggen my words more 😛
🤪😆
My Amsoil 25,000 mile oil filter after 5,000 miles since changing to Amsoil... https://www.youtube.com/watch?v=G4ITAL3HaX0
I have always bought Castrol but only because I find it for a good price.
Pennzoil Ultra Platinum I hear is very good.
@james-st-clair I’m sure it’s great, it just costs more than Castrol where I live so I get the Castrol.
If oil was all the same why wouldn’t everyone here be using the same brand?