OVERKILL
$100 Site Donor 2021
Originally Posted By: HayBusMan
I believe there is validity in Valvoline's claim. I switched to Mobil 15W50 in my sport motorcycles. This was the tri-synthetic
formulation. The magnetic drain plugs were full of iron powder.
I tried the gold cap EP and the same wear was occuring. The oil did a fantastic job in cleaning up the engines though. (Castrol Syntec had left a varnish buildup which Mobil removed!). I believe the deposit control additives are competing with the AW, EP additives and are winning.
Well, I have two 302's with almost 700,000Km between them. Both are driven VERY hard. M1 has kept them clean inside (yes, my engines have actually been apart, these aren't valve cover observations) and there was ZERO visible wear on the Mustang engine, even after all the abuse, fuel dilution due to overly-large injector sizing.....etc.
If the Syntec caused "gum" accumulation in your engine, is it not possible that iron particles were suspended in that "gum", and as the M1 dissolved this, that the particles were set free to accumulate on your magnets?
All kinds of variables here. This is why UOA's are just ONE test of MANY.
Tear-down tests, which, coincidentally, along with a barrage of other tests, are what are performed to evaluate an oil's REAL performance.
GM does this with M1, XOM does this.....etc.
I believe there is validity in Valvoline's claim. I switched to Mobil 15W50 in my sport motorcycles. This was the tri-synthetic
formulation. The magnetic drain plugs were full of iron powder.
I tried the gold cap EP and the same wear was occuring. The oil did a fantastic job in cleaning up the engines though. (Castrol Syntec had left a varnish buildup which Mobil removed!). I believe the deposit control additives are competing with the AW, EP additives and are winning.
Well, I have two 302's with almost 700,000Km between them. Both are driven VERY hard. M1 has kept them clean inside (yes, my engines have actually been apart, these aren't valve cover observations) and there was ZERO visible wear on the Mustang engine, even after all the abuse, fuel dilution due to overly-large injector sizing.....etc.
If the Syntec caused "gum" accumulation in your engine, is it not possible that iron particles were suspended in that "gum", and as the M1 dissolved this, that the particles were set free to accumulate on your magnets?
All kinds of variables here. This is why UOA's are just ONE test of MANY.
Tear-down tests, which, coincidentally, along with a barrage of other tests, are what are performed to evaluate an oil's REAL performance.
GM does this with M1, XOM does this.....etc.