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I've used seafoam before. I'm seeing more of this Moly branded stuff around. Idk if it's better or not. I watched a video about the Upper Cylinder cleaner being directly sprayed onto the valves? Or something ridiculously involved. @Boykie is this what you're talking about? Servicerite PN 00036-00005?
I think the best would have a dealer perform a fuel clean treatment. They actually hook up to your fuel rail and directly spray cleaner into the injectors. I'll probably do that when I get new tires sometime next year. Not sure if the plug into the high and low pressure lines, or if they just disconnect the low pressure line and program the engine into a special mode.
I've used seafoam before. I'm seeing more of this Moly branded stuff around. Idk if it's better or not. I watched a video about the Upper Cylinder cleaner being directly sprayed onto the valves? Or something ridiculously involved. @Boykie is this what you're talking about? Servicerite PN 00036-00005?
I think the best would have a dealer perform a fuel clean treatment. They actually hook up to your fuel rail and directly spray cleaner into the injectors. I'll probably do that when I get new tires sometime next year. Not sure if the plug into the high and low pressure lines, or if they just disconnect the low pressure line and program the engine into a special mode.
Agreed, I’d let the dealer do it. They know these cars like the back of their hand…….usually.
I don't know what that is.
You're expected to run a bottle of 08813-80014 every 10k miles (there's a dash warning about injector maintenance. this bottle is that). It's been specifically formulated for mixed injection systems to not just clean but lube and maintain. Skip on those - your car will start losing power. Slowly, but surely.
On top of that (additionally!) I use a bottle of techron (hard to import but I manage) or STP Gold Complete once in a while, but that is just to offset unknown gas stations' gas and keep my fuel 'dry' (waterless).
I'm going to be that guy and state that none of these are necessary. Directly from the Owners Manual:
Originally Posted by Toyota Motor Corporation
● Lexus recommends the use of gasoline that contains detergent additives to avoid build-up of engine deposits.
● All gasoline sold in the US contains detergent additives to clean and/or keep clean intake systems
All that Toyota cares about:
The octane rating should be 96 RON / 91 R+M/2
If the above is unavailable, 91 RON / 87 R+M/2 is acceptable for short-term use, with an accompanying reduction in power. Long-term use may lead to knocking
If ethanol treated, the ethanol must be no more than 10% of the composition
If MTBE-based, the MTBE must comprise no more than 15% of the gasoline
That's it; the end. It's not 1978 with leaded fuel being phased out and engine control modules using 8-bit CPUs. As described above, the engine controller can actually detect lower octane or to an extent crappy fuel and detune itself to prevent damage.
Originally Posted by Boykie
I don't know what that is.
You're expected to run a bottle of 08813-80014 every 10k miles (there's a dash warning about injector maintenance. this bottle is that). It's been specifically formulated for mixed injection systems to not just clean but lube and maintain. Skip on those - your car will start losing power. Slowly, but surely.
Is this particular to newer cars, or the 460? I've never seen this message on my dash, and the factory maintenance schedule makes no mention of injector cleaner or service.
91 RON / 87 R+M/2 is acceptable for short-term use, with an accompanying reduction in power. Long-term use may lead to knocking
Well, that's a load of rubbish. If the car is going to knock on 87, it'll do it immediately and the knock sensers will retard the timing so that no further knocking occurs.
