Propflux01
$100 Site Donor 2025
Toss it for HPL engine cleaner.
not availableToss it for HPL engine cleaner.
This^You add it in place of a quart of oil when changing the oil and let it work for the duration of the oil change interval. If your engine is dirty, you may wish to make it a shorter than normal interval.
Shipping cost. Easier/cheaper to use double dose RisloneWhy not?
Shipping cost. Easier/cheaper to use double dose Rislone
"How to use Rislone Engine Treatment?"
Here's my step-by-step instructions for how to use Rislone.
Step 1: With your hands, you take the bottle and place it back on the store shelf.
Step 2: With those same hands, put your card back in your wallet.
Step 3: With your feet, preferably with shoes on, walk out of the parts store.
I'm sure you can figure out what to do from there.
Always two bottles.I'm quite familiar with TMP ester. It's great for improving oxidative stability and lubricity in high temperature applications. They are good at preventing sludge and varnish but not the best when it comes to removing existing sludge and varnish. (nor are any polyols) Adipate esters are much better in this regard.
Note also the concentration of TMP in Rislone is 11%. When replacing 1 quart in 5 (20%), the concentration in the oil blend is just 2.2%. That's not enough to do much of anything. Even if it was 11% of the total sump, it wouldn't clean to the level of an adipate at half that concentration.
Not a glowing review of Rislone - now that R&P is out I’ll reserve my two 16oz. bottles for make up oil . Adding less than a Group III oil in with my synthetic oil is not something I would like (although it’s just half a quart of Rislone).You could spend triple the cost of HPL EC (including shipping) on Rislone treatments and not come close to the cleaning action of one treatment of EC.
Per a 2018 analysis of Rislone Engine Treatment...
KV100 - 8.0 cSt (20 grade)
Ester - 11% (TMP)
B - 8
Ca - 1935
Mg - 3
P - 422
Zn - 503
The remainder is a cheap group I or II carrier.
This is essentially just a cheap SAE 20 conventional oil with a cheap SM add pack (at a low treat rate) with some TMP ester. The ester provides little to no cleaning function since TMPs are fully saturated polyols. (adipate esters are the ones that clean) It'll improve oxidation resistance slightly, might help a little with seal pliability, but that's about it.
If added to an API SP/SQ oil, supplementing one quart (20%), calcium would increase by ~18%, Zn/P (ZDDP) would be diluted by ~7%, and all other additives would be diluted by ~20%. (Mo, Si, Mg, and B) That's doing more harm than good.
You'd be better off supplementing one bottle of Valvoline R&P. Better yet, just use Valvoline R&P and forget the snake oil even exists. Your engine and your wallet will thank you. If you really want to crank up the cleaning action, there's HPL EC and HPL PCMO. (which cleans even more aggressively than the EC)