At this moment I'm using Castrol Syntec 5W-20 and I also have used in the past Mobil 1/Pennzoil Ultra.Is Amzoil better or just as good as any oil you would buy in a auto parts store.I use 6k OCI.Thanks Joe
Amsoil vs everyone else
- Thread starter Dually
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There is a lot of UOA evidence that the performance of the major brand fully synthetic oils is very similar. It is much more important to choose the correct service interval, oil filter and viscosity range than the actual brand.
The Germans do a lot of research about which automotive products to use, due to their very high autobahn speeds and long service intervals most cars are subject to and the most popular engine oil company is Liqui Moly with Castrol a close second.
The main difference with Amsoil is that they have a much more active marketing department than the other oil companies.
The Germans do a lot of research about which automotive products to use, due to their very high autobahn speeds and long service intervals most cars are subject to and the most popular engine oil company is Liqui Moly with Castrol a close second.
The main difference with Amsoil is that they have a much more active marketing department than the other oil companies.
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I think the best oil for the money is PP at Walmart. Easy to get, decent price, excellent oil.
If you wanted to do 25K mile oil changes, then Amsoil is the only one.
As far as gear oil or ATF, I think Amsoil is the best and worth the expense of ordering it online and paying for shipping. While many people change their own oil, few change their own ATF or gear oil as evidence of what is on the Walmart shelf. Tons of motor oil and only a little ATF and gear oil.
If you wanted to do 25K mile oil changes, then Amsoil is the only one.
As far as gear oil or ATF, I think Amsoil is the best and worth the expense of ordering it online and paying for shipping. While many people change their own oil, few change their own ATF or gear oil as evidence of what is on the Walmart shelf. Tons of motor oil and only a little ATF and gear oil.
Amsoil is hard to get and more expensive - therefore it must be better !
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Liqui Moly with Castrol a close second.
Both excellent oils but the Castrol there is not related to the stuff they sell here.
Liqui Moly with Castrol a close second.
Both excellent oils but the Castrol there is not related to the stuff they sell here.
For a 6000 mile/6 month oil change, it looks like the Amsoil OEM line might be your most cost-effective choice after looking at their website. No sense paying more for a 10k or 25k oil if you only go 6k miles. At least that is my way of thinking....
I would say.....
Amsoil OE and all the Majors are equal, however....I believe Amsoil has a tighter quality control factor as well as filteration of virgin finished oil products. My Napa stocks it and it is about same price as the rest of the Majors.....
but now I am using Mobil 1 because of twice yearly rebates!
Amsoil OE and all the Majors are equal, however....I believe Amsoil has a tighter quality control factor as well as filteration of virgin finished oil products. My Napa stocks it and it is about same price as the rest of the Majors.....
but now I am using Mobil 1 because of twice yearly rebates!
Originally Posted By: bruno
Amsoil is hard to get and more expensive - therefore it must be better !
Yes it is if clicking "Purchase Now" and opening your front door is a problem...
Amsoil is hard to get and more expensive - therefore it must be better !
Yes it is if clicking "Purchase Now" and opening your front door is a problem...
Originally Posted By: Dually
At this moment I'm using Castrol Syntec 5W-20 and I also have used in the past Mobil 1/Pennzoil Ultra.Is Amzoil better or just as good as any oil you would buy in a auto parts store.I use 6k OCI.Thanks Joe
It depends entirely on what you expect in a synthetic oil.
If you want an oil with a high viscosity index then Amsoil is at best average or below average compared to other synthetic oils.
At this moment I'm using Castrol Syntec 5W-20 and I also have used in the past Mobil 1/Pennzoil Ultra.Is Amzoil better or just as good as any oil you would buy in a auto parts store.I use 6k OCI.Thanks Joe
It depends entirely on what you expect in a synthetic oil.
If you want an oil with a high viscosity index then Amsoil is at best average or below average compared to other synthetic oils.
I really would be careful about the Amsoil 25K marketing hype, as they have provided no real evidence that their oil lasts any longer than other major brand fully synthetics and if you blow your engine up due to too long an OCI, I bet the fine print in the terms and conditions means they are not liable.
In general terms a fully synthetic oil might be OK for a 50% extension to the OCI of a dino oil, but contamination still effects both oil types, so the idea that Amsoil have of encouraging a 25K OCI is nuts, particularly for an older engine or one in severe service type use.
Extending a normal OCI is only safe if you are doing UOA at regular intervals to see what is happening.
Originally Posted By: Donald
I think the best oil for the money is PP at Walmart. Easy to get, decent price, excellent oil.
If you wanted to do 25K mile oil changes, then Amsoil is the only one.
As far as gear oil or ATF, I think Amsoil is the best and worth the expense of ordering it online and paying for shipping. While many people change their own oil, few change their own ATF or gear oil as evidence of what is on the Walmart shelf. Tons of motor oil and only a little ATF and gear oil.
In general terms a fully synthetic oil might be OK for a 50% extension to the OCI of a dino oil, but contamination still effects both oil types, so the idea that Amsoil have of encouraging a 25K OCI is nuts, particularly for an older engine or one in severe service type use.
Extending a normal OCI is only safe if you are doing UOA at regular intervals to see what is happening.
Originally Posted By: Donald
I think the best oil for the money is PP at Walmart. Easy to get, decent price, excellent oil.
If you wanted to do 25K mile oil changes, then Amsoil is the only one.
As far as gear oil or ATF, I think Amsoil is the best and worth the expense of ordering it online and paying for shipping. While many people change their own oil, few change their own ATF or gear oil as evidence of what is on the Walmart shelf. Tons of motor oil and only a little ATF and gear oil.
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In general terms a fully synthetic oil might be OK for a 50% extension to the OCI of a dino oil, but contamination still effects both oil types, so the idea that Amsoil have of encouraging a 25K OCI is nuts, particularly for an older engine or one in severe service type use.
Extending a normal OCI is only safe if you are doing UOA at regular intervals to see what is happening.
Amsoil doesn't encourage extending OCI without UOAs, or in severe service conditions. They also recommend regular filter intervals and there are qualifications on 100K+ cars.
I don't do super extended changes, but their recommendations, if followed, are sound; there are several 20-27K miles OCI documented on this site.
Anyone who has "blown up their engine" using Amsoil, just didn't bother to do their homework.
In general terms a fully synthetic oil might be OK for a 50% extension to the OCI of a dino oil, but contamination still effects both oil types, so the idea that Amsoil have of encouraging a 25K OCI is nuts, particularly for an older engine or one in severe service type use.
Extending a normal OCI is only safe if you are doing UOA at regular intervals to see what is happening.
Amsoil doesn't encourage extending OCI without UOAs, or in severe service conditions. They also recommend regular filter intervals and there are qualifications on 100K+ cars.
I don't do super extended changes, but their recommendations, if followed, are sound; there are several 20-27K miles OCI documented on this site.
Anyone who has "blown up their engine" using Amsoil, just didn't bother to do their homework.
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AMSOIL most definitely does encourage extended service intervals and only mention UOA for diesel engines:
SERVICE LIFE
AMSOIL Signature Series Synthetic Motor Oil is recommended for extended drain intervals in unmodified(1), mechanically sound(2) gasoline-fueled vehicles as follows:
• Normal Service(3) – Up to 25,000 miles or one year, whichever comes first.
• Severe Service(4) – Up to 15,000 miles or one year, whichever comes first.
• In all non-gasoline-fueled vehicle applications, extend the oil change interval according to oil analysis or follow the OEM* drain interval.
The other major brand oil companies seem to stick to the manufacturers recommended change intervals and a petrol engine is just as easily damaged by bad oil as a diesel one.
Amsoil is the only company I can think of that encourages folks to exceed the manufacturers recommended limits and the section that gave the OCI's did not even bother to mention that some oil filters on smaller car engines are supposed to be changed every 10,000 miles.
SERVICE LIFE
AMSOIL Signature Series Synthetic Motor Oil is recommended for extended drain intervals in unmodified(1), mechanically sound(2) gasoline-fueled vehicles as follows:
• Normal Service(3) – Up to 25,000 miles or one year, whichever comes first.
• Severe Service(4) – Up to 15,000 miles or one year, whichever comes first.
• In all non-gasoline-fueled vehicle applications, extend the oil change interval according to oil analysis or follow the OEM* drain interval.
The other major brand oil companies seem to stick to the manufacturers recommended change intervals and a petrol engine is just as easily damaged by bad oil as a diesel one.
Amsoil is the only company I can think of that encourages folks to exceed the manufacturers recommended limits and the section that gave the OCI's did not even bother to mention that some oil filters on smaller car engines are supposed to be changed every 10,000 miles.
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Well, AMSOIL has been around for more than a few years now. They have often published comparisons, run by indepent labs, with major brand oils. To the best of my knowledge, no major has contested the data.
Some folks opt for quality over price per quart, not even considering cost per mile/hour. Others will buy the cheapest they can find. Your choice!
Some folks opt for quality over price per quart, not even considering cost per mile/hour. Others will buy the cheapest they can find. Your choice!
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encouraging a 25K OCI is nuts, particularly for an older engine or one in severe service type use.
You indicated they promoted 25K intervals for severe service and older cars, which they don't. Older car=severe service in their definition.
You are correct about the UOAs however, I had forgotten it was diesel only.
This is really a clarification post; as mentioned, i don't do super extended intervals; but it has been shown the oil is capable "up to" (their words) 25K.
encouraging a 25K OCI is nuts, particularly for an older engine or one in severe service type use.
You indicated they promoted 25K intervals for severe service and older cars, which they don't. Older car=severe service in their definition.
You are correct about the UOAs however, I had forgotten it was diesel only.
This is really a clarification post; as mentioned, i don't do super extended intervals; but it has been shown the oil is capable "up to" (their words) 25K.
Originally Posted By: skyship
Amsoil is the only company I can think of that encourages folks to exceed the manufacturers recommended limits and the section that gave the OCI's did not even bother to mention that some oil filters on smaller car engines are supposed to be changed every 10,000 miles.
XOM guarantees 15,000 miles on their EP series, irrespective of the OEM recommendation.
Amsoil is the only company I can think of that encourages folks to exceed the manufacturers recommended limits and the section that gave the OCI's did not even bother to mention that some oil filters on smaller car engines are supposed to be changed every 10,000 miles.
XOM guarantees 15,000 miles on their EP series, irrespective of the OEM recommendation.
Originally Posted By: Dually
At this moment I'm using Castrol Syntec 5W-20 and I also have used in the past Mobil 1/Pennzoil Ultra.Is Amzoil better or just as good as any oil you would buy in a auto parts store.I use 6k OCI.Thanks Joe
Amsoil (with an S, one word) makes a great product. For 6K intervals save some money and buy Amsoil OEM 5W-20, or possibly XLM 5W-20 if you do a lot of stop and go driving. At regular PC prices they are much better deal than standard OTC prices.
Amsoil OEM 5W-20
Amsoil XLM 5W-20
There is no one general best oil. There is only an oil that is the best motor oil for YOUR engine at this snapshot in time and your over personal driving situation. There is no magical oil that prevents wear. Mystical thin oils on start-up have in theory some advantages but studies have been sparse (non-existent?) and UOA's show no advantage over any of the multiple synthetic oils out there.
You will read a lot of good and bad about Amsoil here. Most of the "bad" is from some people who have never actually used or purchased the product and somehow have formed some opinions about the product marketing. I can assure you the millions and millions of dollars spent by the marketing departments of Mobil, SOPUS, Castrol, etc make Amsoil marketing look miniscule. Funny thing - most if not all these oil companies have followed Amsoil's lead into the synthetic market.
Absorb the hype here on BITOG, but make your own decision from the real world.
At this moment I'm using Castrol Syntec 5W-20 and I also have used in the past Mobil 1/Pennzoil Ultra.Is Amzoil better or just as good as any oil you would buy in a auto parts store.I use 6k OCI.Thanks Joe
Amsoil (with an S, one word) makes a great product. For 6K intervals save some money and buy Amsoil OEM 5W-20, or possibly XLM 5W-20 if you do a lot of stop and go driving. At regular PC prices they are much better deal than standard OTC prices.
Amsoil OEM 5W-20
Amsoil XLM 5W-20
There is no one general best oil. There is only an oil that is the best motor oil for YOUR engine at this snapshot in time and your over personal driving situation. There is no magical oil that prevents wear. Mystical thin oils on start-up have in theory some advantages but studies have been sparse (non-existent?) and UOA's show no advantage over any of the multiple synthetic oils out there.
You will read a lot of good and bad about Amsoil here. Most of the "bad" is from some people who have never actually used or purchased the product and somehow have formed some opinions about the product marketing. I can assure you the millions and millions of dollars spent by the marketing departments of Mobil, SOPUS, Castrol, etc make Amsoil marketing look miniscule. Funny thing - most if not all these oil companies have followed Amsoil's lead into the synthetic market.
Absorb the hype here on BITOG, but make your own decision from the real world.
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