Oil for new engine...

[sub006]

I'd recommend you use a quality 10W-30 conventional oil of your choice (I like Castrol GTX) for the initial start-up and 20 to 30 minute stationary break-in.

Change the oil and filter, then drive the truck for 2500 miles. The conventional oil allows more rapid initial wear which is desirable for break-in. It's really more of a polishing of the friction surfaces in the engine. When you change the oil and filter at 2500 miles, switch to a 5W-30 synthetic. After that I change at 7-8,000 mile intervals or at least once a year.

[OSUCowboy27]

If full synthetics are too pricey for you, try TropArtic Synthetic Blend in a 5W-30 or 10W-30. It is about $1.68 a quart and a great oil.

I also agree that fram are certainly not what they used to be but I think they are fine for older engines ASA you change every 3K. I would not use one for oil change intervals greater than 3K. AC Delco filters are actually cheaper and better quality. The main thing I like about fram is the grip material at the bottom of the filter.

[lapspec]

Since you already went through the initial oil change why settle for less get the best Amsoil. Only have to drain it once a year same with their new filters, one year or 25,000 miles whatever comes first. see www.synthetic-lubricants.com or amsoil.com

[daman]

Originally Posted by lapspec

Since you already went through the initial oil change why settle for less get the best Amsoil. Only have to drain it once a year same with their new filters, one year or 25,000 miles whatever comes first. see www.synthetic-lubricants.com or amsoil.com

I agree Amsoil is good but.......with out doing a UOA part way through the O/C i would not
just jump into doing a 25,000 mile o/c, all cars trucks behave differently and wear oil's out
at different rates. start off slow with maybe a 6-8,000 o/c and go up from there.

i love using Mobil-1 and do 7-9,000 O/C's with ease, could go longer but
i don't..