One mechanics opinion about oil

colliehauler wrote:

twodownzero wrote:

Cummins12V98 wrote:

colliehauler wrote:
I change the Oil and filter every 5k miles, very easy to keep track of.

I change mine with excellent reports every 15k. I KNOW the condition of my oil and engine, very few do.

Easy to keep track of.

Just got my oil analysis back after the oil was in the engine for 3 1/2 years and 14,227 miles. TBN was still >7. I could have left it in there!

I have two motors that depend on clean oil for longevity a 5.4 with cam phasers and a 6.0 Diesel, both are know to have problems with dirty oil. My old Dodge I changed every 10k miles and it's still running around town with mega miles on it.

Oil analysis will tell you if the oil is "dirty." If you're on this site and you're an enthusiast about keeping your stuff in tip-top shape, I highly recommend you use oil analysis, even if you don't change your oil change habits. It can reveal a problem before it gets expensive and is absolutely worth the cost.