My mother's subaru that runs supertech for 10k OCI also looks nearly like this with 150k miles. I can post a picture later
People with high mileage vehicles who run supertech full synthetic oil
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And the Subaru that was drinking 3qts in 5k? I've had a couple cars that developed oil burning, worst was my Corolla that got to about 1qt/1k. That was on regular pretty short OCI's but a lot of conventional. The oil burning research brought me to BITOG, ARX and a couple years of lurking before joining, so probably 2005?
That got totaled in '07 with 220k and was don to less than 1/2 that. That got replaced with my Sonata that over the course of max 7500 OCI on full synthetic, mostly M1 also started burning more and more until 220k when something went in motor but still ran. Lots of flushes, quality filters.
But as the OP states, to each his own. I hope his motors have a long and successful life. I'll stick with "hopefully" more than just meets requirements versions.
Motor and use dependent. My Sequoia didn't burn or leak a drop up to 190k when frame was rotting out and we had to get rid of it. Same oils and OCI's as Sonata ~7500k miles
My Subaru developed severe oil burning around 60k. The inside of the engine was spotless on 5k oci’s, pistons were not. Valvoline R&P cleaned up the pistons and stopped the oil burning. My point is not all oils are the same and engine/conditions dictate what oil to use.
I look forward to the pic! My Subaru’s see severe service as I live in mountainous terrain. My oil temps are around 230 regularly and its hard on oils.
and then look at the valvoline test, where rings got stuck. That was done in a lab aswell. So we know what was ran and how long.
the taxi thing is just a claim without proof of any kind.
Ah yes that'll definitely do it
I've watched this video as well it was very interesting to see the difference in conventional and full syn. I do like the high levels of moly in valvoline.
Which conventional oil was run though? Last time I was in an auto parts store I couldn't even find a fully conventional oil from Valvoline on the shelf. Valvoline Daily Protect (white bottle) was closest and that's a synthetic blend.
Regardless, 10k OCI on a fully conventional is not a good idea. Most vehicles back in the fully conventional era were specced for 5k OCI from the manufacturer.
Would have been more interesting to compare the fully conventional at 5k OCI vs full synthetic at 10k OCI.
Honestly even the synthetic wasn’t amazing in the vid. It did ok IMO. I believe it was Valvoline EP in that test.
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You can't correct every single engineering, design, or process defect in a motor just by putting in good oil and changing it frequently.
See BMW n20's crap plastic timing chain guides, Toyota v35a's with leftover machining debris, GM 6.2's - multiple issues, etc.
You have to start with a good candidate motor in the first place.
And that's the point. These engines were run for a whole working day every day. Oil levels were checked every 8 hours, that tells me every morning before starting. Very little cold running, so no real moisture issues or excessive fuel dilution. A best case scenario for extended drain intervals.
This is Ford dealership regular oil, not synthetic, changes every 3k miles by the previous owner when i bought my 04 Expedition 5.4l 2v ~190k miles. Supertech HM is good oil and if you have ran it with success I'd keep it up.
They are easy on oil and I'd keep up with the 10w30 or 10w40 HM oils, blend or syn, not much difference at 5k mile OCI's.
"Full Synthetic" oil has little meaning these days
Understood but the average car age today is older than it has ever been. My only point is that you have better chance today of getting a good car today, as compared to the past, by that data measure alone.
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My sister had an 03 corolla she put 250+k miles on super tech Castrol gtx white bottle and many many bulk lube shop oil changes. Sold the car and it’s still going has over 300k
My TL got Supertech oil changes for about 45k miles from when I bought it at 265k from a friend. After finding this site and reading the VRP, I switched it to that oil and more recently, I started buying my own filter to have installed.
I bought the car for a friend and he didn't really save his records but judging by the few Carfax maintenance entries, he went to Pep boys and a local oil change place for oil changed prior to me owning buying it. He got it through a friend at auction when it had about 25k miles.
I bought the car for a friend and he didn't really save his records but judging by the few Carfax maintenance entries, he went to Pep boys and a local oil change place for oil changed prior to me owning buying it. He got it through a friend at auction when it had about 25k miles.
That’s generally because people who have the “highest mileage” here on their vehicles are never using them for any performance expectations, they are: 1. Using said vehicle as merely an appliance to move them from point A to point B regardless of the condition of the rest of the vehicle; 2. Aren’t spending any money to obtain new(er) vehicles, by choice or necessity; and 3. By the time the vehicle is among the “highest mileage”, they’re not putting anything more than “oil that claims to meet the spec” into it because if it craps out tomorrow they don’t want to waste the $35 of M1 EP on the car they’re sending to the junkyard.
I will tell you that we’ve never seen a vehicle here go 1M miles on the factory engine on SuperTech; some other brands, yes. SuperTech is literally blended to the cheapest price point possible; considering your Buick’s engine was designed in the 60s, just about anything today from a major is waaay more than sufficient. Have fun, but also check Rural King for better deals than SuperTech. Same blender, likely nearly identical formulas.
Realistically, that’s not true quite often. Search @OVERKILL ‘s posts when he switched from exclusively M1 EP to HPL and found he had plenty of carbonaceous buildup from one of the finest oils ever to grace WalMart’s shelves.
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