Amzoil engine oil

Jeff Niceswanger · 01-19-2020, 08:19 PM

We have ran it for a long time. Actually had the oil pump pick up break off and made entire 7800 rpm dyno pull with 10 psi pressure and the bearings looked new. Yes, the dyno operator was a bit red faced, but it turned out alright. That's what really sold us on it. We use the 10-30 Dominator, but I know some people with tighter bearing clearances than us run the Dominator 20w all the time. I've been told its slower than most oils on the dyno, but if your looking for protection, its a great choice.

taylordunahoo · 01-19-2020, 08:51 PM

We started using the 5w-20 Dominator racing oil in our Jr Dragster many years ago and liked it so good we started using it in the super stocker when Taylor started driving it. We turn this thing 8800 RPM in the quarter mile and after 175 runs bearings looked brand new.I didnt even replace them when i freshend the engine last spring. We also run Amsoil ATF and gear oil.

Adger Smith · 01-20-2020, 09:38 PM

AMSOIL Sponsored The Engine Masters Challenge. Every participant was required to use Amsoil oil. They got to choose which oil and the weight.. all for no charge. I did the tech for 10 years and as far as I could tell there was never an oil related failure. I took apart all the winning engines for inspection and verification. I never saw any damage from oil breakdown. Saw some part failing...but nothing the oil had a hand in. I did see some roller lifters fail from abusive cam profiles. RJ Sledge was the Tech guy in our team that made sure they poured in the AMSOIL and no one sneak anything in other than their oil.. By the rules No additives allowed.

Jim Wahl · 01-20-2020, 11:30 PM

Been running 5W20 Dominator for about 4 years with great results. Refresh showed very little wear after over 220 runs in my 360 Stocker. Jim

.

nhramnl · 01-21-2020, 08:23 AM

Seems kinda sad, but AMZOIL never seems to have been "accepted" by racers. The people that use it seem to swear by it, but the people that don't seem to have nothing good to say. Anybody know of a historical incident or something that gave it a bad rep?

340Cuda · 01-21-2020, 12:27 PM

I have been using the Lucas Synthetic Racing oil. It seems to work well and bearings show very little wear.

However when it is cold it leaves goo in the pan that looks similar to assembly lube.

Does the Amzoil do this? I think I have read the Valvoline does not.

Thanks,
Bill

Jeff Niceswanger · 01-21-2020, 01:19 PM

Quote:

Originally Posted by 340Cuda

I have been using the Lucas Synthetic Racing oil. It seems to work well and bearings show very little wear.

However when it is cold it leaves goo in the pan that looks similar to assembly lube.

Does the Amzoil do this? I think I have read the Valvoline does not.

Thanks,
Bill

In ten years,we have never seen Amsoil separate. I believe what your seeing is the additive package separate from the base stock oil. The higher the grade of base stock used, the less needed in additive packages.

Jddj · 02-04-2020, 01:49 PM

I have been using it for well over eighteen years. With nothing but praise! As far as why it is not being used by most racers, PRICE. MHO

kirk · 02-17-2020, 08:31 PM

I have used amsoil in my snowmobile and motorcycle engines for years without any problems. I even had them warranty a gallon jug that split on the seam. Stand up company. Never any issues in these vehicles.
I tried the Dominator 10-30 in my race car and here is my story.
I had been using Red Line 5-30 in my FE for at least 10 years, my amsoil rep
gave me a great deal on a case of the Dominator 10-30 to try. I put it in the car
and only made one test and tune all year(3passes). My garage is climate controlled,
With no Humidity issues so I left it in the car until spring. I also run VP fuel, and when I went to drain the fuel and the oil the following spring, the oil came out in Clumps, with some rust coloring mixed in. I had etching inside the pan, but no other ill effects thankfully ..... still have 6 quarfs of amsoil on the shelf probably 7 years old. I have a full size cooling system in my car, usually stage around 140 degrees an get back to pits around 180-190 degrees so hopefully it was warm enough. Dont know how warn the oil gets, unfortunately.
Some kind of chemical reaction, with the fuel, or between different oils absolutely caused an issue for me . I never leave synthetic oil in my cars when they go in storage now

Kirk

01-19-2020, 08:19 PM	#1
Jeff Niceswanger Senior Member Join Date: Jul 2003 Posts: 893 Likes: 681 Liked 1,029 Times in 368 Posts	Re: Amzoil engine oil We have ran it for a long time. Actually had the oil pump pick up break off and made entire 7800 rpm dyno pull with 10 psi pressure and the bearings looked new. Yes, the dyno operator was a bit red faced, but it turned out alright. That's what really sold us on it. We use the 10-30 Dominator, but I know some people with tighter bearing clearances than us run the Dominator 20w all the time. I've been told its slower than most oils on the dyno, but if your looking for protection, its a great choice. __________________ Jeff Niceswanger 3740 SS Last edited by Jeff Niceswanger; 01-19-2020 at 08:22 PM.

01-19-2020, 08:51 PM	#2
taylordunahoo Junior Member Join Date: Aug 2018 Posts: 14 Likes: 5 Liked 2 Times in 2 Posts	Re: Amzoil engine oil We started using the 5w-20 Dominator racing oil in our Jr Dragster many years ago and liked it so good we started using it in the super stocker when Taylor started driving it. We turn this thing 8800 RPM in the quarter mile and after 175 runs bearings looked brand new.I didnt even replace them when i freshend the engine last spring. We also run Amsoil ATF and gear oil.

01-20-2020, 09:38 PM	#3
Adger Smith VIP Member Join Date: Dec 2001 Location: Texarkana Ark/TX Posts: 2,446 Likes: 575 Liked 880 Times in 311 Posts	Re: Amzoil engine oil AMSOIL Sponsored The Engine Masters Challenge. Every participant was required to use Amsoil oil. They got to choose which oil and the weight.. all for no charge. I did the tech for 10 years and as far as I could tell there was never an oil related failure. I took apart all the winning engines for inspection and verification. I never saw any damage from oil breakdown. Saw some part failing...but nothing the oil had a hand in. I did see some roller lifters fail from abusive cam profiles. RJ Sledge was the Tech guy in our team that made sure they poured in the AMSOIL and no one sneak anything in other than their oil.. By the rules No additives allowed. __________________ Adger Smith (Former SS) Last edited by Adger Smith; 01-20-2020 at 09:40 PM. Reason: sp

01-20-2020, 11:30 PM	#4
Jim Wahl Veteran Member Join Date: Jan 2002 Location: Central Florida Posts: 5,844 Likes: 666 Liked 683 Times in 129 Posts	Re: Amzoil engine oil Been running 5W20 Dominator for about 4 years with great results. Refresh showed very little wear after over 220 runs in my 360 Stocker. Jim . __________________ Jim Wahl....NHRA #2239 S/SS - IHRA # 8 Stock, D2 Stock Champion (forever I guess) 2019 Baby Gators Stock Champion 2009 NHRA D2 National Open Stock Champion 1982 NHRA D2 West Palm Beach LDRS SS Runner Up Past President, Southern Stock / Super Stock Association.

01-21-2020, 08:23 AM	#5
nhramnl Senior Member Join Date: Feb 2010 Posts: 507 Likes: 8 Liked 358 Times in 83 Posts	Re: Amzoil engine oil Seems kinda sad, but AMZOIL never seems to have been "accepted" by racers. The people that use it seem to swear by it, but the people that don't seem to have nothing good to say. Anybody know of a historical incident or something that gave it a bad rep?

01-21-2020, 12:27 PM	#6
340Cuda VIP Member Join Date: Apr 2003 Location: Tulsa, Oklahoma Posts: 1,669 Likes: 3,852 Liked 800 Times in 337 Posts	Re: Amzoil engine oil I have been using the Lucas Synthetic Racing oil. It seems to work well and bearings show very little wear. However when it is cold it leaves goo in the pan that looks similar to assembly lube. Does the Amzoil do this? I think I have read the Valvoline does not. Thanks, Bill

02-04-2020, 01:49 PM	#8
Jddj Junior Member Join Date: Jan 2019 Location: Vandalia Ohio Posts: 15 Likes: 12 Liked 2 Times in 2 Posts	Re: Amzoil engine oil I have been using it for well over eighteen years. With nothing but praise! As far as why it is not being used by most racers, PRICE. MHO

02-17-2020, 08:31 PM	#9
kirk Junior Member Join Date: Dec 2002 Location: Kalamazoo Michigan Posts: 34 Likes: 2 Liked 5 Times in 4 Posts	Re: Amzoil engine oil I have used amsoil in my snowmobile and motorcycle engines for years without any problems. I even had them warranty a gallon jug that split on the seam. Stand up company. Never any issues in these vehicles. I tried the Dominator 10-30 in my race car and here is my story. I had been using Red Line 5-30 in my FE for at least 10 years, my amsoil rep gave me a great deal on a case of the Dominator 10-30 to try. I put it in the car and only made one test and tune all year(3passes). My garage is climate controlled, With no Humidity issues so I left it in the car until spring. I also run VP fuel, and when I went to drain the fuel and the oil the following spring, the oil came out in Clumps, with some rust coloring mixed in. I had etching inside the pan, but no other ill effects thankfully ..... still have 6 quarfs of amsoil on the shelf probably 7 years old. I have a full size cooling system in my car, usually stage around 140 degrees an get back to pits around 180-190 degrees so hopefully it was warm enough. Dont know how warn the oil gets, unfortunately. Some kind of chemical reaction, with the fuel, or between different oils absolutely caused an issue for me . I never leave synthetic oil in my cars when they go in storage now Kirk

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