^^^ Now see, I've read numerous things about REDLINE not being suitable for turbo engines..... I've never read anything about negative effects of Royal Purple.
..... or perhaps it was redline gear oil in syncro'd transmissions that I read? Now I can't remember.
I'll keep reading..... any links??
In the meantime...... my el-cheapo SPI pre and post Intercooler temp gauges took a crap... actually it was quite some time ago. It was the only air temp gauges I could find at the time.... but it just goes to show you... you get what you paid for.
So today... I just purchased a set of Cyberdyne digital ambient air temp gauges, both with memory recall..... more pics when they show up.