Hey guys,
I haven't posted too much on the forum; however, I recently re-received my 1992 SC400. It has 73k miles on it, and the first thing I did when I got it back was Seafoam it. I did this on Tuesday the 17th and have driven about 40 miles since then. It hasn't had any problems; however, tomorrow I have to drive about 120 miles straight. I haven't replaced the oil, and I was wondering how important it is to do this. I only have a few more hours to go get the oil and replace it so your help is extremely appreciated! Thanks guys

 

You're supposed to change your oil within 100 miles of putting it in your crankcase.
Here's a link all about Seafoam;
https://www.clublexus.com/forums/per...k-in-here.html

 

replace the oil...