I would like to know from you experts, I just bought my wife a 96 Coach ES300 .

And I noticed that the spark plugs that come OEM are the multi-Ground plug
and Denso also has a single ground. My question is have you fellas tried both and between the 2 is there any difference?...My neighbor down the street is a retired Toyota mechanic and he will loan me all the tools to change the plugs.
so what say ye ???...thanx guys