Anyone that has ran Supertech full synthetic or even the regular oil in your cars exclusively or for a very long time, how has the oil treated your cars and how many miles are on them? My father had a 2006 toyota tundra with the 4.0 V6 and has been running Supertech 5W-30 full synthetic high mileage for as long as i can remember and his truck has almost 300k miles on it now, he bought it brand new and does 10k miles oil change intervals. I just want to hear about other peoples experience before I decide to run supertech 10W-30 Full Synthetic HM doing 5k mile oil change intervals in my new to me 2002 Buick Lesabre with 83k miles on it. Please lemme know about you guys experiences.
People with high mileage vehicles who run supertech full synthetic oil
- Thread starter danjak26
- Start date
I can't really say I have ever seen a difference in any oil. Cheap..to expensive same thing. Perhaps with long oil change intervals and oil analysis there might be a difference but I have never done that kind of testing. Cheap oil usually allows the engine to outlast the rest of the car.
I’ve noticed that the people with the highest mileage cars on this forum always swear by the cheapest oil, I rarely see someone on here with a high mileage car that uses a name brand more expensive oil or have much in that cars lifetime
I've got around 150K on the engine in my Grand Marquis and I use Supertech synthetic.
Supertech has a high mileage synthetic that doesn't cost any more than the regular synthetic 
One option: use the cheapest oil that meets the OEM requirements. Supertech, Kirkland, etc.
Opposite opinion (not mine): use boutique oils like Amsoil SS, HPL, Redline. Cheap Warren oils are "minimum requirement", and may cause problems like stuck rings.
Opposite opinion (not mine): use boutique oils like Amsoil SS, HPL, Redline. Cheap Warren oils are "minimum requirement", and may cause problems like stuck rings.
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Patman
Staff member
The reason is because engines that are designed to last a long time will generally last long no matter what oil they run. They are simply easy on the oil. So don’t draw any conclusions about cheaper oil equaling longer engine life over a premium oil
I've been using SuperTech/Tech 2000 for over 25 years. Here, in the rust belt, the engine will outlive the body 99% of the time. Two weeks ago, I drove my dad's minivan due to the wrecker, it was an '06 Uplander 3.5L. For the the last 15 years or so, it's had nothing but jobber tier oil filters and bulk oil based on the OLM. Further, any time I've serviced it, it got SuperTech conventional.
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It's essentially the same oil as the Kirkland brand you recommended in another thread.
My son ran the 5w40 Euro ST in his 2013 GMC 1500 5.3L with almost 400,000 kms on it because it’s the cheapest 5w40 he could find.
That truck got parked a couple of months ago because of frame rust.
His new to him 2014 F350 6.2L got its first A3/B4 5W40 yesterday.
That just goes to show ya that nowadays the engines will outlast the vehicles. From off roading the 1500 is pretty much trashed.
That truck got parked a couple of months ago because of frame rust.
His new to him 2014 F350 6.2L got its first A3/B4 5W40 yesterday.
That just goes to show ya that nowadays the engines will outlast the vehicles. From off roading the 1500 is pretty much trashed.
Im aware, i ran the kirkland for one oil change before i sold my last car thats why im asking
This is the best reasonable answer for all to follow.
The reality is that people over think things. Run an oil that meets spec for your car. Keep it full and keep it clean and the motor will outlast the rest of the car. Problem with cars at 250k or so is that everything else is worn out or about to be worn out and so anything other than a trip to the store is a faith based activity unless you want to spend the time and money needed to put the car in good order.
Most high mileage auto owners change the oil on a regular basis using reasonable intervals. Any oil that meets the autos specs is fine, brand is not a major factor.
You will be fine with your choice. I used ST Syn 5w-30 for a very long time in my vehicles until, I think, found something I like better.
For the last 3 years, I've been using Super Tech High Mileage Full Synthetic 5W-30 in my three 2006-2007 Honda Odysseys with VCM enabled with a 5,000 mile / 6 month (whichever comes first) oil change interval.
Due to various family members having very long commutes, each van is driven close to 20,000 miles a year each (so each van has gone about 60,000 miles on Super Tech HMFS oil). So between the 3 vehicles, we've driven over 180,000 miles on Super Tech HMFS 5W-30. No issues to report so far.
As per some SME's on BITOG, this Honda J35 engine with the 1st generation VCM enabled is harder on the oil than any other engine, as the Variable cylinder management and poorly designed PCV system overheat/cook the oil, especially on the cylinder heads.
Personally, I prefer to only use Dexos 1 Gen 3 approved oils, as that spec sets a higher bar for sludge/varnish deposits than API SP/SQ,
and Super Tech HMFS 5W-30 is Dexos 1 Gen 3 approved.
The only concern I have with Super Tech High Mileage Full synthetic oil is that it doesn't explicitly state on the container that it contains seal swellers to help prevent oil leaks. Other brands such as Quaker State / Pennzoil mention it on their oil containers.
My vehicles are not prone to oil leaks in general, so I'm unsure how Super Tech HMFS would slow/cure a vehicle with oil leaks.
There isn't much info on the web on if anyone had an oil leak that was slowed or cured by Super Tech High Mileage Full Synthetic,
so its still an open question. If anyone has some experiences with Super Tech HMFS slowing/curing an oil leak on their vehicles, please let us know so we can benefit from that info.
Due to various family members having very long commutes, each van is driven close to 20,000 miles a year each (so each van has gone about 60,000 miles on Super Tech HMFS oil). So between the 3 vehicles, we've driven over 180,000 miles on Super Tech HMFS 5W-30. No issues to report so far.
As per some SME's on BITOG, this Honda J35 engine with the 1st generation VCM enabled is harder on the oil than any other engine, as the Variable cylinder management and poorly designed PCV system overheat/cook the oil, especially on the cylinder heads.
Personally, I prefer to only use Dexos 1 Gen 3 approved oils, as that spec sets a higher bar for sludge/varnish deposits than API SP/SQ,
and Super Tech HMFS 5W-30 is Dexos 1 Gen 3 approved.
The only concern I have with Super Tech High Mileage Full synthetic oil is that it doesn't explicitly state on the container that it contains seal swellers to help prevent oil leaks. Other brands such as Quaker State / Pennzoil mention it on their oil containers.
My vehicles are not prone to oil leaks in general, so I'm unsure how Super Tech HMFS would slow/cure a vehicle with oil leaks.
There isn't much info on the web on if anyone had an oil leak that was slowed or cured by Super Tech High Mileage Full Synthetic,
so its still an open question. If anyone has some experiences with Super Tech HMFS slowing/curing an oil leak on their vehicles, please let us know so we can benefit from that info.
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That depends entirely on the motor. There's certainly motors out there that aren't likely to make it to 250k without major work - regardless of oil or OCI used.
Now, the OP's father's 1GR? Yeah... any oil sold in the USA that gets changed every 10k miles is more than likely going to be just fine.
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