Super tech full synthetic HM versus Mobil1 HM 5w-30

[Glenda W.]

Wouldn’t ever expect a wear difference between oils. But I do see engine cleanliness differences. Especially in severe service and in problem engines.

Mobil Synthetic HM would be more comparable to Supertech Synthetic HM.

 

[Carlostrece]

I think there are many oils better than Supertec, but Supertec is good enough.

A friend of mine put 410K miles (mostly highway miles) on a 96 Jeep Cherokee using the cheapest Supertec oil and filter Walmart sells. He'd never pay a cent extra so I'm sure he never used Supertec HM.

(I owned that Jeep from 30K to 93K miles. I used Mobil One 10w30 and Wix filter. I sold him the Jeep at 93K miles.)

Starting at 93K miles oil he had all oil changes done by Walmart at the longest OCI miles that Walmart would recommend. Maybe even less often because he's not a car guy and not very responsible. So from 93K to 410K on Supertec 10w30 and Supetec filter serviced by Walmart.

At 410K the engine was finally clapped out. It could be rebuilt, but he wants a newer car.

Supertec is adequate. Supertec HM is better than adequate.

That said, I'll probably stay with one of the Valvoline HM oils, though also considering other brands of HM 5w30 too (especially if they run on the thick end of cSt range at KV100). Amsoil makes a 5w30 HM that intrigues me too.

 

[Auto tech]

With the fact supertech is mostly re-refined base stock my choice would be m1

 

[Ronsant]

With the fact supertech is mostly re-refined base stock my choice would be m1

I have never seen that here before. My understanding is that Warren makes a good synthetic oil. You’re saying that they are using used oil that is cleaned and refined as a base stock?
I’ve seen multiple good oil analysis of ST synthetic on this site.

 

[ripcord]

With the fact supertech is mostly re-refined base stock my choice would be m1

I haven't seen any marketing materials that would substantiate your claim, but even if it were true, that fact alone doesn't mean it is the inferior product. Re-refined oil can be as good as any other Group III oil depending on how it's processed.

 

[50yr Street Mech]

When other " brand names" are not on sale, I go with Supertech. My mentor told me as a kid " motor oil is motor oil, just depends on the frequency of changing it " All synthetics are made from natural gas anyway. How much difference can their be ?. Ok, for racing purposes their has to be a difference. That's a whole nother ball of wax. But I do OCI's at 3k no matter what the oil anyway, including the filter. Am I wasting my money ? Probably , My time , Probably. But let the stats speak for themselves . 3 engines : 128k, 126k, 614k No problems whatsoever with these engines. If it ain't broke, don't fix it.

 

[Auto tech]

I have never seen that here before. My understanding is that Warren makes a good synthetic oil. You’re saying that they are using used oil that is cleaned and refined as a base stock?
I’ve seen multiple good oil analysis of ST synthetic on this site.

This is from yesterday from Warren. Lubricating oils hydro treated spent is re-refined

 

[ripcord]

When other " brand names" are not on sale, I go with Supertech. My mentor told me as a kid " motor oil is motor oil, just depends on the frequency of changing it " All synthetics are made from natural gas anyway. How much difference can their be ?. Ok, for racing purposes their has to be a difference. That's a whole nother ball of wax. But I do OCI's at 3k no matter what the oil anyway, including the filter. Am I wasting my money ? Probably , My time , Probably. But let the stats speak for themselves . 3 engines : 128k, 126k, 614k No problems whatsoever with these engines. If it ain't broke, don't fix it.

Sorry to be pedantic, but not all synthetics are made from natural gas. Most synthetics use primarily Group III base stocks made from regular old crude. The ones made from natural gas are called GTL base stocks, and while good, are not the majority of synthetic base stocks used in synthetic motor oils. Shell is the only major company currently producing GTL.

 

[Auto tech]

Sorry to be pedantic, but not all synthetics are made from natural gas. Most synthetics use primarily Group III base stocks made from regular old crude. The ones made from natural gas are called GTL base stocks, and while good, are not the majority of synthetic base stocks used in synthetic motor oils. Shell is the only major company currently producing GTL.

Correct. But Mobil uses gtl in some of it's oils. They get the gtl from shell

 

[Auto tech]

I haven't seen any marketing materials that would substantiate your claim, but even if it were true, that fact alone doesn't mean it is the inferior product. Re-refined oil can be as good as any other Group III oil depending on how it's processed.

 

[tolian21]

View attachment 288739
This is from yesterday from Warren. Lubricating oils hydro treated spent is re-refined

So what? Its dexos gen3. It will work fine

 

[Bill7]

So, I had decided to go with Supertech full synthetic high mileage for both my Honda CRV and Buick LeSabre. The CRV is a 2015 with a K24 engine.(first year of direct injection.) and the old Ironsides 3800 V6 in the Buick. Walmart here in Ontario has a price promotion on Mobil1 with three jugs for $99 which is a pretty low price for this product here in $CAD. The Supertech is not on sale but its normal price is just a hair under $29 CAD for one jug. (FWIW, it is also available in 10w30 HM full synthetic which is rare up here these days). The 10W-30 weight has traditionally been what I put in the Buick engine. Over the last few years., the mileage we rack up annually is a lot lower than it used to be and so the average OCI for the LeSabre is about 3000 miles every 12 months with the CRV coming in around 4000-4500 miles every year. I’m certainly OK with an annual OCI on the Buick because that engine is the most tolerant and forgiving when it comes to motor oil I’ve ever owned. However, even though we are logging less than 5000 miles annually on the CRV, I still am changing the oil on that one twice a year given the short tripping and cold weather trips that impact DI engines as I think the Honda is harder on oil because of this.

The real question I am pondering is whether the Mobil1 is worth the extra four dollars per jug over the Supertech. I don’t mind spending the extra coin if it would actually make a real world difference or if my concern either way is as Shakespeare once wrote, “Much ado about nothing“. Each of these oils, similar to the Kirkland synthetic that I have used before each meet the latest current standards which matter a lot more for the Honda than they do the Buick. Given the relatively short OCIs, what ‘sayeth’ the BITOG community?

I use Super Tech HMFS 5W-30 in all my vehicles with 5k mile / 6 month (whichever comes first) OCI. No issues to report.

 

[Carlostrece]

The difference is the price of a gallon of gas and you are changing annually. Get the Mobil.

I think what he's really asking is if Mobil 1 is really better, and if so, how much would it matter?

I don't know if M1 is better than Supertech. If so, not by much, and you'll never notice a difference, IMO.

 

[50yr Street Mech]

Oh, so the synthetics have dino oil in them. Did not know that. Thanks for the heads up I'll stick to my wasteful 3k OCI with filters. No problems thus far. If no broke, no fix

 

[kschachn]

Oh, so the synthetics have dino oil in them. Did not know that. Thanks for the heads up I'll stick to my wasteful 3k OCI with filters. No problems thus far. If no broke, no fix

Only as additive carriers or other adjuncts. If it's a synthetic oil then it isn't a blend.

 

[Starving Electrician]

Only as additive carriers or other adjuncts. If it's a synthetic oil then it isn't a blend.

Synthetic oils that are marketed and sold as synthetics can and for many oils are group 3 base stock oil. Which is a highly refined crude oil so not synthetic at all.

I'll let you in on something cool Mobil 1 5w-30 Super Synthetic is a group 3 base stock so its a highly refined Dino oil. You are 100% blatantly incorrect on this one.

Which is why I dont see the Mobil 1 5w-30 as being worth the extra money for the same base stock oil. That is just my opnion though. In my case I run 5w-30 so thats where I know all of that from.

 

[kschachn]

Synthetic oils that are marketed and sold as synthetics can and for many oils are group 3 base stock oil. Which is a highly refined crude oil so not synthetic at all.

I'll let you in on something cool Mobil 1 5w-30 Super Synthetic is a group 3 base stock so its a highly refined Dino oil. You are 100% blatantly incorrect on this one.

Which is why I dont see the Mobil 1 5w-30 as being worth the extra money for the same base stock oil. That is just my opnion though. In my case I run 5w-30 so thats where I know all of that from.

Hydrocracked Group III bases are not "highly refined crude oil", they are synthesized all day. You are the one who knows little about chemistry and compounds, and are falling for Internet lore and misconceptions.

Blatantly cool story though.

 

[Auto tech]

So what? Its dexos gen3. It will work fine

I know it's good oil. No doubt. My point is that for a few extra bucks you can get a major brand with non re-refined base stock

 

[Starving Electrician]

Hydrocracked Group III bases are not "highly refined crude oil", they are synthesized all day. You are the one who knows little about chemistry and compounds, and are falling for Internet lore and misconceptions.

Blatantly cool story though.

Ohh cool so if a take crude oil refine it to a state in which all the molecules are the same size despite all the hydrocarbons in the oil being directly from crude it isn't just highly refined crude. Thats fascinating I guess if I pull all the impurities and let's say deuterium oxide out of water its now no longer water but some special synthetic water? Simply because I pulled out everything in the water that I didn't want?

Does that sound right? No it doesn't because it isn't. Group 3 oils are just that. It has all the bigger or smaller unwanted hydrocarbons and impurities pulled out and what's left is still a refined oil not a synthetic one. Like in the highly purified water example sure the impurities and heavy water is removed but it wasn't synthesized it was just refined.

It's not like the API classifies group 3 oils as mineral oil. Oh no they do. So the authority on the subject calls them mineral oil. Hmm I guess they have to be wrong too because you're obviously right random guy on a forum.

 

[Auto tech]

When other " brand names" are not on sale, I go with Supertech. My mentor told me as a kid " motor oil is motor oil, just depends on the frequency of changing it " All synthetics are made from natural gas anyway. How much difference can their be ?. Ok, for racing purposes their has to be a difference. That's a whole nother ball of wax. But I do OCI's at 3k no matter what the oil anyway, including the filter. Am I wasting my money ? Probably , My time , Probably. But let the stats speak for themselves . 3 engines : 128k, 126k, 614k No problems whatsoever with these engines. If it ain't broke, don't fix it.

Nothing wrong with 3k oci for sure .