dr_whigham

iTrader: (49)

Not trying to beat a dead horse, or ressurect it for that matter. Stumbled across this on another thread. This is going back to the debate about the small filter vs large, pro's / cons..... Check out the micron specs on each, with each having the same flow rate. This is for WIX filters, mind you.....

51522 (Larger filter) - specs say that it filters 15 microns

51042 (Smaller filter) - specs say that it filters 19 microns

Here are the specs:

Part Number: 51522
UPC Number: 765809515222
Principal Application: AMC (82-86), GM, Saturn (93-08), Jeep (81-86), Isuzu (03-08), Saab (06-08)
All Applications
Style: Spin-On Lube Filter
Service: Lube
Type: Full Flow
Media: Paper
Height: 4.526
Outer Diameter Top: 2.921
Outer Diameter Bottom: Closed
Thread Size: 13/16-16
By-Pass Valve Setting-PSI: None
Anti-Drain Back Valve: Yes
Burst Pressure-PSI: 290
Max Flow Rate: 9-11 GPM
Nominal Micron Rating: 15

Gasket Diameters
Number O.D. I.D. Thk.
Attached 2.734 2.430 0.226



Part Number: 51042
UPC Number: 765809510425
Principal Application: Various GM Cars & Trucks (75-76) (96-08)
All Applications
Style: Spin-On Lube Filter
Service: Lube
Type: Full Flow
Media: Paper
Height: 3.404
Outer Diameter Top: 2.921
Outer Diameter Bottom: Closed
Thread Size: 13/16-16
By-Pass Valve Setting-PSI: None
Anti-Drain Back Valve: Yes
Burst Pressure-PSI: 320
Max Flow Rate: 9-11 GPM
Nominal Micron Rating: 19

Gasket Diameters
Number O.D. I.D. Thk.
Attached 2.734 2.430 0.226

Just thought some might want to know this. The 51522 IS A BETTER FILTER that does NOT impede flow!

dphc18

iTrader: (5)

Is it okay to switch to synthetic if motor has had regular oil for 80,000 miles so far?

99FormulaM6r

iTrader: (2)

Should be. It can develop leaks as the synthetic oil has smaller, more uniform molecules and the conventional causes seals to swell, so synthetic CAN cause leaks to form from this.....BUT, with that many miles on it I don't think it would be a problem and if any leaks occur just put conventional back in it.



Since this thread is back up....before people start bashing ALL kinda of Fram filters, the Extended Guard is actually getting pretty good reviews....seems to be well constructed and flows pretty well

msd98ss

mobil 1 5w30... idk this was an old thread

DeLaRosa25

iTrader: (10)

I use conventional Valvoline 10w30 with Fram XG

Since valvoline came out with a synthentic for their maxlife line, I will probably switch the T/A over to it and give it a try since I rolled over 100k.

Never had a problem running conventional oil in a high mile car..still run it in my 233k camaro

ebk06

iTrader: (5)

Like 99FormulaM6r said it should be ok to switch but it can cause leaks. I switched to synthetic on my 87 mustang when it had 90k on the clock and oil just disappeared. It wasnt burning oil to where it was visible it was just getting comsumed. On the next oil change I went back to conventional and after a bit the oil consumption went away.

senicalj4579

iTrader: (41)

I have used the most expensive oil, cheapest oil, in between oil, synthetic oil, regular oil, switched back and forth, mixed both oils, ect... Now what I do is get the big yellow jug off the shelf with a medium priced filter. Sometimes ill just say **** it, and grab the big silver/grey synthetic jug. The single most important thing is you change your oil when it needs it.

bayer-z28

iTrader: (14)

Ditto… cheap insurance = $6 M1 oil filter or a $2400 rebuild. I started with Casterol Syntec with my car back in 03 when I didn't know any better, but the only combo I will run now is M1 5-30 and M1 filter. Never tried Amsoil, but I have read good reviews.

I swear by M1/M1 now after reading the reviews on BITOG. I even put M1 5-30 in my snowblower!! the manual actually recommended a full synthetic (Simplicity with a 10hp B&S Intek Snow). The only time that ***** boggs now is if I'm charging head first into a 3' bank of drifts in 4th gear, and even then it doesn't really "Bog".

bayer-z28

iTrader: (14)

The thing is, I've read reviews on An LS1 engine treated with the M1 system since birth and even after 50,000miles o some crazy number, they tore it apart and you can still see the factory hone marks In the cylinder walls and you couldnt see it when treated with a base dyno-oil from birth. 0_o that was convincing enough for me.

jthunderz28

Just change your damn oil every 3k and you will be fine.
There I made it easy for you, lol.

98blackbirdta

iTrader: (7)

Royal purple with k&n filter

Mr CHI

iTrader: (3)

That happened to me once. It was too tight to twist off and I didn't have a filter wrench. Grabbed a butcher knife out of the kitchen, jammed it through the filter, and used it as a turning lever. It worked, but I wouldn't recommend it.

As far as the oil, I use whatever they have on sale. Usually Penzoil or Castrol 10w-30.

mrmahone

iTrader: (1)

Mobil 1 5w-30 and a purolator plus filter. 197,000 miles strong so far. Thinking of going 10w-30 though, Florida doesn't get very cold....

The Mighty Texan

iTrader: (4)

I'm using mobil 1 as well but it made me start leaking :/ I'll prob switch back

highgear

WalMart 5w-30 and their Filter. Works just fine.
Well, sometimes if I want to get fancy, I use the AC Delco filter.

t/a98

iTrader: (6)

I wouldn't let that convince you, my factory ls1 blew and I pulled it apart and could see factory honing at 110k miles, and the people before me never changed the oil. Sludge was literally five Inches deep.

I swear by penzoil platinum and wix, but I wouldn't hesitate to use m1 oil and filter if penzoil platinum was out of stock one day..

ncsu602

iTrader: (10)

Switched a 5.3 Silverado at 126k and to this day at 155k doesn't leak a drop or use any. Been that way 4 years. I normally buy whatever is on sale, Pennz Platinum, M1, or Castrol Syntec. 0-30 for the car, 5-20 for the wifemobile (with Hyundai filters), 5w-30 for the truck, all in sythetic with AC Delco filters (except Santa Fe). Wix and Napa make one hell of a filter, but I use AC just because they're OEM and easily available. I think people focus WAY too much on what does a good job and what doesn't. There are differences, but at regular intervals they all should do a good job. I've even run Walmart Supertech synthetic a few times with good results. I do the wife's 2008 Santa Fe every 7500 (about every 5 months) and other than being a little dirty, it feels just as it did when I put it in, still alot of life left.

wav3form

iTrader: (1)

I'm running the German Castrol 0w-30 and a K&N oil filter but I'll probably go with the Penzoil Platinum 5w30 if I can get that and a good filter for under 60 bucks. If not I'll just stick with the Castrol and K&N.

Shockwave179

iTrader: (7)

German Castrol and Purolator PureOne Filters.

ls1 1990 VN

Valvoline syn 5w40 and Fram HP1 filter