Are there any good oil thickeners for semi truck oil ?
Any good oil thickener
- Thread starter Redland1
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Isn’t it just straight oil with no additives?
Would STP be considered a thickener?
thicker oil is a thickener 
and like someone else said, you can use Lucas or Motor Honey or any of those other additives
and like someone else said, you can use Lucas or Motor Honey or any of those other additives
It doesn't have much additive to it, but you said you wanted a thickener, Lucas will do that among a few other things.
If you are wanting some kind of additive with other benefits look into Prolube but it wont have much of a thickening benefit.
Why not try Mystik JT-8 15w50. I'm currently running the 15w40 flavor and it seems fine so far... A UOA will tell me more at my OCI.
Just my $0.02
Correct. It very effectively dilutes the add pack of whatever oil it was mixed with.
There are numerous threads on this forum debating its merits and its lack of doing anything except draining peoples wallets.
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Mobil 1 FS X2 European Car Formula Full Synthetic Motor Oil 5W-50, 1 Quart
https://www.walmart.com/ip/195514940
Castrol Power1 V-Twin 4T 20W-50 Full Synthetic Motorcycle Oil, 1 Quart
https://www.walmart.com/ip/44580676
Super Tech All Mileage Motor Oil SAE 20W-50, 1 Quart
https://www.walmart.com/ip/718453956
https://www.walmart.com/ip/195514940
Castrol Power1 V-Twin 4T 20W-50 Full Synthetic Motorcycle Oil, 1 Quart
https://www.walmart.com/ip/44580676
Super Tech All Mileage Motor Oil SAE 20W-50, 1 Quart
https://www.walmart.com/ip/718453956
Last edited:
What is good about it?
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I've seen turbo chargers fail on diesel semi trucks that used Lucas. It's literally the worse thing you can do to your engine. It's like poisoning your engine.
Yes, use a higher viscosity oil.
Proof? I will be waiting. Because if this is the case then guess what? higher viscosity oil will do the same lol.
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Lucas Oil Stabilizer is a low cost and low quality viscosity improver, sold at huge markup. When you replace 10% to 20% or more of your motor oil with Lucas, you have that much less anti wear additives, less detergents and dispsants, and so on. Just cutting down ZDDP, friction reducers, and detergents & dispersants, is good enough to effectively destroy the bearings inside a turbo in a diesel engine. After that, the piston rings will wear out, because Lucas is a magnet for dirt, and also likes to create deposits. The rings will have so much wear that when remove them, you can use them for shawing. The rod and main bearings in a big Diesel engine will go last, because these bearings are so big. You probably will have to rebuild your engine before they let go, because of the increased blowby and decreased power, and probably because you're tired of replacing turbos because... you keep using Lucas. Some folks never learn.
In a personal vehicle with a gas engine Lucas will do some serious damage. It prevents oil from getting where it needs to be, fast enough, by clogging up passage ways that are narrow, like those inside an oil-coolant heat exchanger for example. That's why Lucas came out with a thinner version of their crud and dubbed it "Synthetic", whatever that means ... for what it really is.
But hey, if you, or anyone else wants to use Lucas, or keep using it, by all means. It's not my problem, and I won't suffer the consequences of such a bad decision, you will.
I would say more or less or more for less. I would look for something like a SAE 30 wt that still has detergents or Liquimoly Motor Oil Saver
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He wants it for a semi truck. Think north of 15W-40. The OP could go 15W-50. Something like HPL 15W-50 would fit the bill nicely, as it cleans, and has very good anti wear properties. Of course, it's expensive, but you get what you pay for.