I use the Mobil 1 M-206 for the extra 1/2 quart capacity.

 

I run Pure One(for now).

Patman, what do you think of the Amsoil series of filters? I run Amsoil 10W-30 synthetic in all my cars with the Pure One filter. Just wondered.

 

The new filter to replace the PF44 is the PF46 (I still can't seem to find out the difference though), and the reason they don't make a UPF46 is probably because the standard AC Delco PF filters are not made by the same company which makes the UPF filters. If they were to discontinue the UPF44 and change it to a UPF46, Corvette owners would probably freak out. The same company which makes the UPF filters also makes the Mobil 1, K&N, Bosch Premium, STP and Walmart Supertech (which is a clone to the STP and a great value for a $2 filter!)

 

The Amsoil oil filters are pretty good actually, they flow pretty well but also trap a decently small sized particle.

 

not to doubt you or anything but we actually sent both the pure one and k&n off for testing. same size and all and the filtration came back as the exact same. but the k&n flowed just a tad bit better. when i get back to work i'll get the charts and post them. i will make one statement however NEVER RUN A FRAM. I have had 2 customers just in my store that have had the fram come apart and sent pieces of filter into the motor

 

What stores carry the K & N's?

 

I guess no more frams for me then!
Wish I'd known that before.

 

I use the Fram PH3506 filter.

 

Yah, what stores can you get the k&n from? I use baldwins in the diesel.

 

K&N- they are the only 10 micron filter on the market.

And if you want to get really ****- get an Amsoil bypass oil filter as well. It filters a small amount of oil at a time- and is 3 micron.

 

Not trying to start a fight here, because you certainly seem to know what you are talking about, but I'd like more info on the above statement. Why are dirt particles ok in a hard driven engine? The flowthrough in the filter has to be due to pressure buildup / loss. Wouldn't it be a better overall situation for an engine to us the filter getting the tiny particles and increase the flowthrough by getting more pressure from the oil pumping system - with a booster or something?
Or am I completely off and we're talking about racing engines that are taken down more frequently without re-using the oil?

 

If you've got a hard driven engine which uses a more restrictive oil filter which traps tiny particles, you'll end up with that filter going into bypass mode a lot, and when the filter kicks in and out of bypass you'll also be interrupting the flow of oil ever so slightly. Every time this happens you'll create a little bit more wear on the bearings. With the LS1 engine, it's clearances are large enough that you can have 10-15 micron particles floating around that will do virtually no harm. So instead of trying to get an oil filter that is stopping those harmless 10 micron particles, you'll see better results if you get an oil filter which is good at trapping 15-20 micron particles and larger, plus flows a lot of oil.

On my last oil analysis I drove my car extremely hard, but yet only saw just over 3ppm of lead in a 3100 mile interval. This is using the K&N oil filter and the German made Castrol Syntec 0w30. That shows that not only is the oil doing it's job very well, but the oil filter is also flowing well enough that all those WOT runs I did were not starving the engine for oil. One way I could tell how the K&N was flowing better for me was that with all other oil filters I would see my oil pressure spike up a lot just before the redline when I went WOT, but with the K&N the pressure stays steady.

 

Patman you think I could run that 0w30 down here in Miami?

 

Does anyone run the napa gold filter? I always heard they were one of the best.

 

AC, WalMart, Wix, Purolator all work good for me.

 

Hell,
I am using the Wal-Mart brand on my Hawk.

Adam H. 2002 Firehawk #536

 

Thanks for the helpful explanation. I've never owned a performance car (V8) and am taking delivery of my new GTO hopefully in February. You are in about the same climate as me. Do you have a recommendation of what oil to use and an oil / filter care and upkeep plan? I'm planning on keeping it stock for a while. The car will be my daily driver while there is no salt / snow on the ground, and I'm not worried about small horsepower gains early on. That being said, I'm sure somewhere around the 36k mark (when the warranty is up - maybe before...) I'll be ready to start playing and would like to have a nice clean engine to start with.

 

Most definitely! It's on the very thick end of the 30wt range, so it has excellent hot weather properties.

 

Use the K&N oil filter, or the Wix/NAPA Gold/Carquest premium. As far as oil, Redline 5w30, Amsoil 0w30 or 5w30, or German Castrol Syntec 0w30 all work very well.

 

I use Amsoil oil/filter. What's the agenda on the bypass though? Is it worth the price tag (I think it was about $200)? They told me something like: "you never have to change the oil again, just the filter every 8000 miles"