WHO WANTS A GOOD FIGHT? Motor Oil Poll

[am92]

Guys you can go out to 5k now, esp if you drive mostly highway miles. Oils are a lot better now than they used to be. If you do lots of short trips or traffic then earlier is good. Most OE's recommend 7500 now on new cars.....

I use full synthetic now whatever is cheapest and change mine every 5k

 

[bluex]

I use full synthetic now whatever is cheapest and change mine every 5k

Depending on which synthetic your using you can go 10-15k easy on those. Still change the filter every 5k though. I ran royal purple in my 03 gt to 15k, filters every 5k. Some people ran it to 25k though!

BMW's come with full synthetic and a oil monitor. Most of them go 20k+ before telling you to change it an that's their recommendation to listen to the car lol

 

[outalne94z71]

i run rotella in both trucks, 15-40 in the mudder and synthetic in the diesel

 

[shelbyt.67]

Here is a very extensive oil filter study that was performed by Aloicious, one of our mods on here.

http://www.gmt400.com/forum/showthr...-suggestions-ideas&highlight=Oil+filter+study
http://www.gmtruckcentral.com/articles/oilfilterstudy.html
http://www.gmtruckcentral.com/articles/oilfilter/gradesheet.htm

Lots of good info. That being said, I use Mobil 1 10w30, fram extra guard (will be switching to the 4wd version of the xtended guard), and change oil every 5000 miles.

Holy Crapola! That was a fantastic study. Wish I had found that two days and all my marbles ago.
This is the best truck forum on the net.

 

[SAATR]

As of right now, I'm running Castrol Syntec 5W20 in the wife's kid hauler (04 Mercury Monterey) out to 8k miles, which is supported by my last two oil analyses, using a Purolator Pure One or Motorcraft filter. The Burb gets Rotella T6 5W40 with a Wix or Purolator Pure One filter once a year, because I hardly drive 5k miles a year in it.

 

[96twodoor]

My dually gets whatever is on sale , my tahoe gets vavaline 10w30 both get puralator pure one filters.

Sent from my ADR6300

 

[jeff's88silverado]

Please read the study linked above an stop using ac delco filters asap.

And I just changed it a few days ago thanks for the heads up. Gonna go read the link


Edit: Well looks like i'll be swapping to mobil 1 filters too

 

[ChrisAU]

I run Chevron Delo 400LE 15W-40 with the Fram Extended Guard filter.

***This blows a lot of people's minds somehow: If your oil is clean after 3k, or 5k, or whatever, it is NOT doing its job. Dirty oil after a short period is a GOOD thing. That means that the oil you used did a lot of cleaning. Think about washing your truck; when it is dirty, the water that comes off is dirty. If the water comes off clear, you aren't getting anything off your truck. I highly doubt any GMT400 has a beautifully clean internal engine (if its original).

 

[454ss]

last time i had my intake off at 150,000 or so, clean as could be with no sludge or build up. at 3000 my oil is dark dark brown but not black.

 

[X-Cutioner]

was running mobile full synthetic 10-30 with a fram extended guard filter changing it at every 10K

at 186,000 i switch it for amsoil full synthetic 10-30 with an amsoil filter (still on this change at 192,000)
crazy part is i can't remember when i changed it, im thinking im coming up on a year