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#1 |
Registered User
Join Date: Jun 2018
Location: Fuquay-Varina, NC (Just outside of Raleigh)
Posts: 237
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Opinions on Rislone
Since another oil change is in my near future, I thought I'd solicit opinions on Rislone oil treatment.
I inherited my '72 about two years ago, and did some online reading when I first got it. I can no longer site my sources, but somehow got the idea that a quart of Rislone with an oil change (using a high mileage 10w-30) was a good idea. Any opinions? Snake oil? Harmful? Helpful? |
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#2 |
Senior Member
![]() Join Date: Dec 2013
Location: Gods country East,Tn
Posts: 8,545
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Re: Opinions on Rislone
use the website click on products ,There are a bunch of rislone treatment products .
![]() https://rislone.com/?from_international=1 |
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#3 |
Senior Member
![]() Join Date: Apr 2016
Location: Cypress, TX
Posts: 3,702
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Re: Opinions on Rislone
There's 2 camps, one has the people who think all additives are not necessary. The car manufacturers are all in that camp. The other camp has the people who swear by this or that additive. I was in the group thinking additives are not necessary, but then was recently converted to believe Lucas Heavy Duty Oil Stabilizer does good. I have not tried the Rislone, sorry, but do have the info on Lucas.
My wife's Mitsubishi Endeavor started having engine noise, sounded like clattering going on in there, and it consumed a lot of oil. It ran a little rough and had hesitation. I took it to my mechanic. Engine code computer said there was intermittent missing. He said it is probably the exhaust valves. He would need to tear into it. He suggested change the oil from 5w20 regular to 10w30 high mileage oil and possibly add an oil treatment if I feel like it, and see what happens. If it doesn't work out, bring the car back and he'll tear into it. My brother is a believer in Lucas, so I decided to try out the Lucas Heavy Duty Oil Stabilizer. I was not yet due for oil change, so I drained out a quart of oil and added the stabilizer. That Endeavor straightened out and flew right immediately. Noise stopped and oil consumption went way down. Engine code cleared. Smooth running. Several thousand miles have now gone by (10000 probably). I add a quart of that stuff with each oil change, and change the oil more frequently on my mechanic's suggestion. I'm going with 4000 miles between changes. My 69 Chevy truck was also getting a noisier engine and consuming and leaking more oil than I wanted. I had forgotten what oil my engine builder advised to use, and I changed it for some 10w30 at my next oil change. It became noisy and leaked and consumed oil like crazy within a thousand miles or so. I dug through my notes and found he had advised 20w50. I switched back to 20w50 and added the Lucas as well, and it runs better and quieter and no longer leaks. Last edited by dmjlambert; 07-22-2018 at 08:40 PM. Reason: spelling |
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#4 |
Moderator
![]() Join Date: Jun 2017
Location: Cherryville, NC
Posts: 2,193
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Re: Opinions on Rislone
Synthetic engine oils lack the ZDDP (zinc) necessary for flat tappet engines...
If you are running an early style flat cam engine, you must be using an oil additive, regardless of manufacturer. ![]() ![]() ![]() ![]() ![]() ![]() |
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#5 |
Registered User
Join Date: Jun 2018
Location: Fuquay-Varina, NC (Just outside of Raleigh)
Posts: 237
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Re: Opinions on Rislone
Okay, thanks guys. I think I'll add the Rislone with the oil change still.
Nice first hand experience with the Lucas, hopefully this is similar. |
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#6 |
Registered User
![]() Join Date: Feb 2000
Location: Maquoketa, Ia/ Orr, Mn
Posts: 3,008
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Re: Opinions on Rislone
Incorrect, not all synthetic oils lack the required zinc for flat tappet engines. Amsoil Z-Rod is made just for flat tappet engines and has the high zinc levels that are required. No additive required when using Amsoil Z-Rod.
https://www.amsoil.com/shop/by-produ...?code=ZRTQT-EA
__________________
'51 South Bend Model "9A" '56 Chevy 3600 NAPCO '74 Chevy Cheyenne Super K20-restored on 37's '72 GMC Sierra Custom K2500- in progress '08 GMC Envoy Denali '12 GMC Sierra 2500HD Denali '17 GMC Yukon XL VCCA member #58596 http://www.nohrco.com |
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#7 | |
Moderator
![]() Join Date: May 2007
Location: Southern Cal
Posts: 20,005
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Re: Opinions on Rislone
Quote:
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1972 C/10 Cheyenne Super SWB. Restored, loaded, slammed. 1968 C/10 50th Anniversary LWB. Unrestored, stock, daily driver/work truck. RIP ElJay RIP 67ChevyRedneck RIP Grumpy Old Man |
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#8 | |
Registered User
![]() Join Date: Feb 2000
Location: Maquoketa, Ia/ Orr, Mn
Posts: 3,008
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Re: Opinions on Rislone
Quote:
I wasn't arguing the point that Amsoil was the only oil for flat tappet engines but the myth that synthetic oils in general lack the required ZDDP for flat tappets and an additive is required regardless. This is also an interesting read on the ZDDP topic. https://www.sae.org/publications/tec.../2004-01-2986/
__________________
'51 South Bend Model "9A" '56 Chevy 3600 NAPCO '74 Chevy Cheyenne Super K20-restored on 37's '72 GMC Sierra Custom K2500- in progress '08 GMC Envoy Denali '12 GMC Sierra 2500HD Denali '17 GMC Yukon XL VCCA member #58596 http://www.nohrco.com |
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#9 |
Cantankerous Geezer
Join Date: Aug 2002
Location: Bel Aire, KS
Posts: 6,264
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Re: Opinions on Rislone
My first use of Rislone was when I was a teenager, right after Moses came down off the mountain.
![]() Rislone is a detergent. Rislone will not help an engine that is burning oil. If you have a sticking lifter it can be your best friend. It is also good for cleaning the gunk out of an engine, but it takes a while. It does little good to use it unless you have these problems. Today's oils have detergents that will keep an engine clean with regular oil change.
__________________
Fred There is no such thing as too much cam...just not enough engine. ![]() |
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#10 |
Registered User
Join Date: Dec 2009
Location: bisbee, arizona
Posts: 1,529
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Re: Opinions on Rislone
what does not go through the pick up screen glogs up the pick up screen,
I think thats a quote from Moses or Corinthians... |
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