motul 8100 5w40 x-cess vs. motul 8100 5w40 x-clean
08-17-2010, 12:13 AM
#13
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I notice a decrease in fuel economy using 5w40 vs 5w30.
08-17-2010, 12:48 AM
#14
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INDYMAC Posted on Aug 16 2010, 09:42 PM
That intelligent person would understand 0W-30 works better 
Btw, that matrix webpage does mention esters & Motul so you're right about that.
The official Motul website I've found is not that informative (what I mean is: its crap!)
Jeff_s2k Posted on Aug 16 2010, 09:58 PM
They have been saying that since 1999, its 2010 now.
The only real manual update is about the radio
Read the part about oils again and you'll see they recommend 5W-40 in colder outside temps.
Pretty logical.....
Oh wait... maybe its because of the 5W.
I'll stop.
5W-40 will work most anywhere that an intelligent person would drive an S2000.
Btw, that matrix webpage does mention esters & Motul so you're right about that.
The official Motul website I've found is not that informative (what I mean is: its crap!)
Jeff_s2k Posted on Aug 16 2010, 09:58 PM
In Canada, 10W30 and 5W40 is the recommend oil by Honda in the owners book.
The only real manual update is about the radio
Read the part about oils again and you'll see they recommend 5W-40 in colder outside temps.
Pretty logical.....
Oh wait... maybe its because of the 5W.
I'll stop.
08-17-2010, 02:47 AM
#15
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Well, I usually try to stay out of the "what's the best viscosity" argument. But if I were to guess, I'd say that 0W-20 would offer the best performance and fuel economy in the F20/F22 engines. That assumes that enough oil pressure can be created under all oil temperature ranges to operate and protect engine components, especially VTEC. Will it protect well enough long term to suit my tastes/needs? I honestly don't know. So I'll lean towards the conservative side, like Honda seems to have.
As far as group V base oils go, they have their advantages over other base oils. They handle extreme heat and they have better solvency over other synthetic base oils (the blender is not as limited WRT additives). The companies that market these oils (Redline, RLI, Inc. and Motul) seem to be targeting the racing crowd that have large displacement, high output engines, or direct injection fuel systems. That makes sense and might actually offer a thermal breakdown and HTHS advantage. But I have yet to see any wear control advantage using these products in a street car.
As far as group V base oils go, they have their advantages over other base oils. They handle extreme heat and they have better solvency over other synthetic base oils (the blender is not as limited WRT additives). The companies that market these oils (Redline, RLI, Inc. and Motul) seem to be targeting the racing crowd that have large displacement, high output engines, or direct injection fuel systems. That makes sense and might actually offer a thermal breakdown and HTHS advantage. But I have yet to see any wear control advantage using these products in a street car.
02-15-2011, 11:39 AM
#16
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X-clean is more expensive but it's better. It meets x-cess specifications plus some other specifications like C3 which is diesel. I've been using x-cess in my S and there is no problem. The reason why they require you 0w20 and such low friction oil is for better fuel economy. But what i'm looking for is protection!!! that's why I don't mind the higher viscocity and less performance. But let's be realistic, S2000 is not a car that you would race. I have a GT500 and a M5 and my S wouldn't catch up if it was attached to a chain to them. But... my s gets me more girls
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