Spark Plug Recommendations?
#31
Others may fit 2007~08 RX350:
NG-6619 NGK - Iridium IX Spark Plug
LFR6AIX11 NGK IRIDIUM IX OEM - Spark Plug
DILFR6D11 NGK Laser Iridium - Spark Plug Iridium-Platinum; Resistor
2008 RX350 AWD/FWD Owner's Manual
Last edited by 5W40; 06-23-15 at 10:49 PM.
#32
I think you should stick with FK20HR11 at least as manual states and SK20R11 doesn't fit your 2008 RX modle
Others may fit 2007~08 RX350:
NG-6619 NGK - Iridium IX Spark Plug
LFR6AIX11 NGK IRIDIUM IX OEM - Spark Plug
DILFR6D11 NGK Laser Iridium - Spark Plug Iridium-Platinum; Resistor
2008 RX350 AWD/FWD Owner's Manual
Others may fit 2007~08 RX350:
NG-6619 NGK - Iridium IX Spark Plug
LFR6AIX11 NGK IRIDIUM IX OEM - Spark Plug
DILFR6D11 NGK Laser Iridium - Spark Plug Iridium-Platinum; Resistor
2008 RX350 AWD/FWD Owner's Manual
specific details can be compared at sparkplugs.com
#33
Yeah I am going to stick with what the owner manual suggest. Will probably have those plugs replaced at 120k miles or when the valve cover leaks gets worst, which currently isn't. BTW, my mechanic suggested me to use Mobil 1 high mileage oil, which I did. He said sometimes those high mileage oil can lessen the leak somewhat but not guaranteed. I went with it since I have always use Mobil 1 standard 5-30.
#34
Yeah I am going to stick with what the owner manual suggest. Will probably have those plugs replaced at 120k miles or when the valve cover leaks gets worst, which currently isn't. BTW, my mechanic suggested me to use Mobil 1 high mileage oil, which I did. He said sometimes those high mileage oil can lessen the leak somewhat but not guaranteed. I went with it since I have always use Mobil 1 standard 5-30.
When the plugs are needing servicing, its a very good time to replace the valve cover gaskets as needed.
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