Along the list of changes between the Blue top and Silver top 2UR-GSE motors, I noticed that Lexus said they changed the spark plugs between the 2 motors??

Does anybody know what they changed exactly (length, thinner profile etc....) with the new plugs compared to the OEM plugs for the ISF??

Thx

 

OK, I did the research for you. On the OEM plugs, the only difference is the gap. Went from .044 to .032. Heat range, profile, length, everything else the same. On the TT replacement plug, the one I use, no change. see attachments.

Lou

 

Thanks Lou! You the man

I was just curious as Lexus said new plugs in the changes and thought to myself what did they change...... but if it's only the gap then that isn't much of a change