tim's rx300 Posted June 4, 2010 Posted June 4, 2010 Hi - At what mileage does Lexus USA recommend for spark plug replacement. Lexus UK recommend 60,000 miles but I was told that Lexus USA recommend 100,000 miles. Is this correct? thanks, Tim.
tim's rx300 Posted June 4, 2010 Author Posted June 4, 2010 What plugs, Iridium, Platinum ? Sorry! should have said that the plugs are the original equipment which I think are iridium rather than platinum. thanks, Tim.
sktn77a Posted June 4, 2010 Posted June 4, 2010 Original issue plugs for the US V6 engine are Denso Iridium and the change interval is 100,000 miles. Gas is very different in the US and UK (both better in some respects and worse in others) and I don't know if the engines are tuned similarly. So while I believe the iridium plugs should be good for 100,000 miles in the UK, YMMV.
1990LS400 Posted June 5, 2010 Posted June 5, 2010 Original issue plugs for the US V6 engine are Denso Iridium and the change interval is 100,000 miles. The recommended spark plug change interval has never been 100,000 miles for any vehicle sold in the U.S. with the Lexus brand. The recommended spark plug change interval for both the U.S. specification RX330 and RX350 is 120,000 miles using "Denso FK20HR11 plugs or equivalents. Maintenance manuals including spark plug change intervals for U.S. specification Lexus vehicles can be viewed in the online maintenance manuals in the Owners section at http://www.lexus.com .
Hadyourphil Posted June 6, 2010 Posted June 6, 2010 Hate to say this, but I have 165,000 miles on mine and I've never changed the plugs...
bluei69 Posted May 20, 2012 Posted May 20, 2012 on an 2000 rx 300 im having trouble getting the upper intake manifold bracket off any ideas
ricco750 Posted May 20, 2012 Posted May 20, 2012 on an 2000 rx 300 im having trouble getting the upper intake manifold bracket off any ideas At what point are you "stuck". There are generally two "sticking places"...the first being the bolts between the firewall and manifold that screw into the manifold. It's a very tight place to get your hand into, and as I remember on mine, there were four bolts which ranged in size from 14mm to 12mm to 10mm. They were simply a PITA, and took me well over an hour just to remove. Maybe I could do it faster the second time. The next "sticking place" is lifting the manifold over the manifold studs. It is MUCH easier to get yourself a female torx socket and remove the studs, then the manifold comes out easily. Hope this helps.
Domenico Nelli Posted October 17, 2012 Posted October 17, 2012 Original issue plugs for the US V6 engine are Denso Iridium and the change interval is 100,000 miles. Gas is very different in the US and UK (both better in some respects and worse in others) and I don't know if the engines are tuned similarly. So while I believe the iridium plugs should be good for 100,000 miles in the UK, YMMV. I thought this too....so i got Denso's...when i did the job (w/o removal of the plenum) and removed the original plugs, they were NGK's. I did my first plug job at 120,000 and they looked just a nice as the new plugs. No deterioration whatsoever!
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