rbl3

iTrader: (1)

HCI2000SS

iTrader: (2)

Unless stock specs I always go off of what the builder recommends, regardless of what I read on the internet

slogo

So have you had any issues with using the Mobil 1? Are you going to change something that has been working for you
just because you see something on youtube? I couldn't get very far in that mind numbing mono tone excitement of a Video,
but looked like just generic graphs anyone could have created and put any brand name in, and their going off of knowing most will not check and see
if any of those tests are true. So I will continue using Mobil 1. The way I see it is, if it ain't broke,, well you know.

99 Black Bird T/A

iTrader: (4)

Definitely interested in Penzoil Ultra after seeing that video. Would like to see more testing data on it.

sarcasm on
I will always trust any YouTube video put together by an Amsoil distributor that selected the data displayed as the definitive truth about oil.

When an Amsoil distributor uses pretentious phrases like "install oil" instead of oil change, I know that distributor would NEVER play word games and always has my best interests at heart when showing data of their choice from independent testing.

Sarcasm off

I will completely discard the the ~400,000 mile, perfectly good running 305 V8 that was pulled from my 91 RS for the LS1 swap that ran 30 Mobile 1 5w-30. An experienced master mechanic, that trained factory dealership techs for a major automobile manufacturer at the factory school, inspected the valve train and insisted this 305 had to be a nearly new engine with only 30,000 to 40,000 miles on it, not a 365,000+ mile engine. The engine was way too clean to be a high mile engine. He was so sure he argued, I was wrong it was the original engine. Proving I was the original owner of the car left him nearly speechless. The valve cover gaskets had started leaking and we're replaced.

I will also disregard that my 99 TA had an XER cam that lived for ~130,000 + miles with the original factory lifters. Back in the early days of the LS1, was told dozens of times that the XER would never last 50,000 miles because the ramp rate was too harsh for longevity. Also told Mobile 1 5w-30 was to thin, not up to the task, etc and that Amsoil was the safest choice many times. The old LS1 with XER was still going strong when pulled for the new 416.

I will also ignore the advice and recommendations from my engine builders and jump on the Amsoil bandwagon due to a YouTube video. After all what would folks who built 900hp NA engines for NASCAR, worked for MTI in its heyday of LT1 & LS1 glory and are SAM graduates. After all anyone could run high 8's low 9's NA with a stock block Pontiac back in the late 80's. What would any of these folks know about engines oil compared to an Amsoil distributor that "installs oil"? I mean social media and everything on YouTube is the absolute truth because you have to have credibility & credentials to post videos on YouTube.

I think Amsoil is an excellent product but I know for a fact Mobile 1 synthetic is an excellent project based on proof with my own vehicles over the last twenty years. If Amsoil had been available in my area way back in the 90's I might be an advocate for them if I'd used the product and got the same results as I have with M1 over the years.

Oh and that Mobile 1 synthetic ATF kept that 700R4 alive for 389,500 miles with no issues other than the speedo seal was replaced to stop a small leak. Not a single transmission shop I've talked to believed it was possible for a 700R4 to go that many miles and still work and drive well. It was also pulled in good working order when the LS swap was done on the 91 RS.

Oh and the Mobile 1 synthetic 75w-90 gear oil, that was in the 91 RS's weak 10-bolt. The rear end was still good with no issues after 389,500 miles. Pinion seal was replaced once around 375,000 miles or so because it started to leak.

Hawk's Motorsports stated when they did the LS swap they had never seen any third Gen with so many miles on the original engine, original transmission and original rear end with no rebuilds etc. The only thing in common was regular maintenance and Mobile 1 synthetic in all three.

Getting 32-34 mpg highway, GPS proven and confirmed was pretty nice too.

Maybe Amsoil would have went the same distance, however Mobile 1 did go the distance. I feel confident staying with Mobile 1 for my daily driver type cars & truck.

8.Lug

wannafbody

iTrader: (2)

I think in the past that Amsoil and Mobil 1 used base stocks from the same supplier but the add packs were different. Amsoil has a leg up in that some of their formulations have higher levels of zinc.

99 Black Bird T/A

iTrader: (4)

There are definitely strong beliefs in the car community about the need for lots of zinc in oil. With older flat tappet cams there's a good argument despite the fact the newer oil formulations are backwards compatible. However, zinc is a last line of defense to prevent metal to metal contact. There are other ways to do that last line of defense with less zinc and still be effective. Valvoline has a few comments on it.

https://www.valvoline.com/about-us/faq/racing-oil-faq

Given that XER cam in the TA didn't have any issues for 15 years & 130,000+ miles running Mobile 1 5w-30, I no concerns with Mobile 1 zinc levels in a roller cam daily driver street engine.

Likewise, I think pretty much all of the synthetics are very good these days.

Amsoil does start with a Group IV base stock which is more expensive and better for extremes than the Group III base stock most synthetic oils use these days. If I lived in the Middle East and had to deal with the extreme temperatures or somewhere like Siberia with extreme cold, I would consider Amsoil.

If an independent lab dyno like Westech tests Amsoil 5w-30 vs Mobile 1 5w-30 and shows that Amsoil consistently and repeatedly makes more hp in an engine similar to one of mine I will pay attention, I will reconsider.

​​​​

G Atsma

Marketing is one thing, testing is another. And the tests look pretty convincing, since those ARE standard oil quality tests.
8.Lug, if you have any proof to the contrary, many of us are all ears. If not, STFU.

truckdoug

iTrader: (25)

amsoil 0-20w SS comes out looking pretty good in this test too at $15/qt. but economic factors dictates that I stick with mobile 1 5w30...a gallon at walmart is $22
ce
https://540ratblog.wordpress.com/201...-test-ranking/

G Atsma

Economics..... yeah there IS that....

sjsingle1

iTrader: (1)

ratblog has the mobil 0-40 euro formula as ranking in at number 5...right behind amsoil.....jus sayin.....

23$ at wally world for the big jug......jus sayin....

G Atsma

Yeah, Mobil1 has too good a rep after all these years to just be trashed as it was in those tests. But oil tech has moved along while Mobil1 is same ol'....

pdxmotorhead

Isnt there a oil thread already around here somewhere?? like every other engine forum on the planet?

rbl3

iTrader: (1)

sjsingle1

iTrader: (1)

amsoil is a fine oil.....no argument with me there....if I could only afford it..... it would be on my shelf and in my car

ddnspider

iTrader: (26)

LOL@$15/qt= $90 oil change plus filter. I change my oil after every trip to the drag strip or 1000 miles. I could buy a JY 5.3 every couple years for the cost of that oil. There is something to be said for changing the oil enough to get the junk and buildup out of the engine instead of running the same oil for 12/24k miles like some of these oils say you can.

8.Lug

truckdoug

iTrader: (25)

no kidding, we didn't even make it a month this time

Che70velle

iTrader: (6)

98CayenneT/A

I put my used Trans Am oil in my daily driver Ford Fusion.