Bonneville America Forums Forums Technical Forums General Tech Low Oil Pressure

I really was hoping to get it to 4K miles then change the oil and sample it. I think I'm close. My commute to work and back is less than a 10 mile round trip, so even if I come home for lunch, it's going to take a long time to put many miles on it. But a 4K mile oil sample would be telling.

My owners manual says 4K mile intervals so that's what I've always done, fortunately able to do that at least 2x/year the first 10 years...

I've only used the SHELL Rotella-T Synthetic 5w40 truck oil (that's why I started sampling the oil from the beginning).

I have substituted a quart of oil with a quart of Polydyn TX7 polymer about once a year, or every 3rd oil change, and I really give the coating a lot of credit for saving the engine when it seized up two years ago. Again, it sat for two weeks, and apparently whatever was "stuck", loosened/freed up...

This next oil analysis is going to be very telling...