Thread: Oil and Filter preferences

royal purple 10-30 in summer... 5-30 winter, K and N or mobil 1 filter whichever one is cheaper.

Mobil 1 Filter and 5-30w winter / 10-30 summer Castrol GTX every 3000-3500 miles.

Originally Posted by cerick08GP

lmao You read my mind, just not the 10W-40 part. 10W40 = in WI But then again pure syn might be ok in that weight

i ran 10w40 all the time in my car to keep my oil pressures up high where i wanted them. no problems ever with it.

Originally Posted by 01GTP

10w-40 is too thick for newer engines. The celerances are too tight.

nah, its fine.



i always ran store brand dino oil and fram filters on my car and it ran like a top. i think anyone that seriously buys synthetic and runs it all the time is a complete sucker. these motors take anything so long as the oil gets no water in it or you run it low (or lose oil pressure). screw a $50 oil change, ill do mine for $20.

Originally Posted by matt5112

...we keep the better Frams...

Oxymoron...Fram is junk no matter which version you choose.

If you want a cheap oil change, go with Wal-Mart SuperTech...some of the better oil and filters out there, and definitely the best bang/buck.

I use Mobil 1 oil and filters.

Originally Posted by cerick08GP

True, I can confirm that. I have extrapolated my OLM a few times and it always puts me at ~9k mile oil changes. My personal worry is that I don’t see many oils that advertize 10k oil changes. But at the same time I do know GM fully stands by their OLM. Even thought they use a fairly robust algorithm for the OLM, it can’t compensate for all the variables.

yeah. The only harm that will come from doing an early oil change is to my wallet. I can deal with that

I use shell rotella t synthetic 5-40 and the larger wix filter changed at 5k miles

10w40 royal purple eith the larger k&n filter for the 4.3 l in the blazers. ( and yes I know the dangers of motor mounts failures and bigger filters)

On my GP, I used RP 10W-30 with Pure One filters.

To the people running extended oil change intervals, I'd highly recommend using a synthetic/fleece filter. Several German car owners with extended oil change intervals (over 10,000 mi) have seen the paper filters disintegrate. I don't know if anybody here plans on going that long, but I've seen some people on other GP forums who get oil analysis going 15-20k mi between oil changes.

Here's a pretty informative site describing most filters on the market:
Oil Filters Revealed - MiniMopar Resources

A lot of the more expensive "high end" filters are made by the same companies using the same materials as less expensive filters. For example, here's what they have to say about the K&N filters:

K&N It's a white Mobil 1 filter with a nut welded to the back. It's made by Champion Labs using what I call their "performance" design instead of the "Ecore". Save the $2-$3 plus shipping and get the Mobil 1.