Royal Purple oil filters - ZR-1 Net Registry Forums

Norwegianmopar · 03-23-2023

Has anyone tried Royal Purple oil filters on their car? I use their oil since my mechanic sells it and he asked me if I knew of anyone who had tried the RP filters on a LT5.

Access to Bosch 3401 or AC Delco PF970C (blue) here in Norway is very limited at best.

All input on other good filters are appreciated too.

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longhorns05 · 03-24-2023

I've been using Wix on mine. Mobil 1 is another choice as well

secondchance · 03-25-2023

How would one distinguish good vs. bad oil filter trough use? I think the only way is to disassemble and compare the quality of internal construction.

Norwegianmopar · 03-25-2023

Quote:

Originally Posted by secondchance

How would one distinguish good vs. bad oil filter trough use? I think the only way is to disassemble and compare the quality of internal construction.

On our cars it's a lot about anti-drainback, how well the filter keeps the oil when the car is parked.

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WARP TEN · 03-25-2023

Marc Haibeck has some good information on his website about oil filters: http://www.zr1specialist.com/HAT%20W...ers%202006.htm. --Bob

secondchance · 03-25-2023

Thank you for reminding me of anti-drain back being critical. Perhaps checking the weight before install and after engine shut down after so many hours would provide a meaningful info.
I seriously considered pre-luber a few years back. But then, blown head gasket, rebuilding the motor twice, sent me in a different direction. Now a days, I log less than 5,000 miles per year and the Z will probably out live my left leg.

Dynomite · 03-25-2023

I use Mobile M1-207s.......

I prefer an oil filter that will not create a mess when removing it over night since the LT5 Oil Filter sits on top with opened end down. A Mobile M1-207 works perfect in that case.

Post 3 - LT5/ZR-1 Fluids

Norwegianmopar · 03-26-2023

Quote:

Originally Posted by Dynomite

I use Mobile M1-207s.......

I prefer an oil filter that will not create a mess when removing it over night since the LT5 Oil Filter sits on top with opened end down. A Mobile M1-207 works perfect in that case.

Post 3 - LT5/ZR-1 Fluids

Marc Haibeck does not recommend the Mobile M1 due to poor anti drainback (ref article on website). Could the lack of mess be due to the filter being almost drained out?

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Young1 · 03-26-2023

Go ahead and try the Royal Purple if your mechanic and dealer can get it for you. Support the locals. The engine will tell you on start up if it likes it or not. Fram, Bosch, Delco were no go clattering for me. Sticking with WIX 51324.

Norwegianmopar · 03-26-2023

Quote:

Originally Posted by Young1

Go ahead and try the Royal Purple if your mechanic and dealer can get it for you. Support the locals. The engine will tell you on start up if it likes it or not. Fram, Bosch, Delco were no go clattering for me. Sticking with WIX 51324.

I ended up buying the Wix 51324 too, only the Euro version ia all black with a different number.

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03-23-2023	#1
Norwegianmopar Join Date: Mar 2018 Location: Norway Posts: 345	Royal Purple oil filters Has anyone tried Royal Purple oil filters on their car? I use their oil since my mechanic sells it and he asked me if I knew of anyone who had tried the RP filters on a LT5. Access to Bosch 3401 or AC Delco PF970C (blue) here in Norway is very limited at best. All input on other good filters are appreciated too. Sent from my SM-G955F using ZR-1 Net Registry mobile app __________________ Roy Martin 1994 ZR-1 #112 Admiral Blue/Black Dana 4:10 Aluminum flywheel Corsa exhaust Watson headers Haibeck chip 470 HP/399 RWHP 1991 ZR-1 #400 White/Red (SOLD) Dana 4:10 Powder coated engine Haibeck performance chip Borla exhaust

03-24-2023	#2
longhorns05 Join Date: Mar 2019 Location: Austin, TX Posts: 44	Re: Royal Purple oil filters I've been using Wix on mine. Mobil 1 is another choice as well __________________ 93 ZR-1 Red/Red 415ci Jeal cams/headers, hf cats, B&B Wilwood brakes, DRM coilovers 94 ZR-1 Red/Blk 368ci SW headers, hf cats, Corsa 16 GT-R Blk/Blk Stg1 3.8 BL1200X, Shep1k, Motec 1250 whp on pump e85

03-25-2023	#3
secondchance Join Date: Aug 2006 Location: McLean, VA Posts: 3,707	Re: Royal Purple oil filters How would one distinguish good vs. bad oil filter trough use? I think the only way is to disassemble and compare the quality of internal construction.

03-25-2023	#5
WARP TEN Join Date: Apr 2007 Location: Lake Bluff, IL Posts: 2,043	Re: Royal Purple oil filters Marc Haibeck has some good information on his website about oil filters: http://www.zr1specialist.com/HAT%20W...ers%202006.htm. --Bob __________________ 2016 Long Beach Red Z06 #10281 "POPS Z" 1995 Polo Green #409 "WARP TEN"--Haibeck 350/510 package, 4.10s, Hurst, Stock Exhaust with QTP Cutouts --Sold but still running strong 1993 Quasar Blue #161 "HIL KING" --Sold but still running strong, now with more than 120,000 miles 1967 Marlboro Maroon/Saddle Corvette Coupe 300 hp/4-spd --Sold a long time ago ZR-1 Net Registry Founding Member #95 NCM Lifetime Member Favorite Quote--Attributed to Mickey Thompson: "Too Much Horsepower is Almost Enough"

03-25-2023	#6
secondchance Join Date: Aug 2006 Location: McLean, VA Posts: 3,707	Re: Royal Purple oil filters Thank you for reminding me of anti-drain back being critical. Perhaps checking the weight before install and after engine shut down after so many hours would provide a meaningful info. I seriously considered pre-luber a few years back. But then, blown head gasket, rebuilding the motor twice, sent me in a different direction. Now a days, I log less than 5,000 miles per year and the Z will probably out live my left leg.

03-25-2023	#7
Dynomite Join Date: Aug 2009 Location: South Dakota/California Posts: 3,788	Re: Royal Purple oil filters I use Mobile M1-207s....... I prefer an oil filter that will not create a mess when removing it over night since the LT5 Oil Filter sits on top with opened end down. A Mobile M1-207 works perfect in that case. Post 3 - LT5/ZR-1 Fluids __________________ Left Clickable links -Solutions- LT5 Modifications/Rebuild Tricks Low Mileage ZR-1 Restoration 1990 Corvette (L98) Modifications LT5 Eliminated Systems LT5 Added Systems LT5/ZR-1 Fluids 1995 LT5 SPECIFIC TOP END REBUILD TRICKS

03-26-2023	#9
Young1 Join Date: Sep 2016 Location: Ocala, FL Posts: 880	Re: Royal Purple oil filters Go ahead and try the Royal Purple if your mechanic and dealer can get it for you. Support the locals. The engine will tell you on start up if it likes it or not. Fram, Bosch, Delco were no go clattering for me. Sticking with WIX 51324. __________________ Steve Young 1991 ZR-1 Quasar Blue Metallic/Black #729 Second Owner 1991 ZR-1 Dark Red Metallic/Black #2040 SOLD 1990 ZR-1 Dark Red Metallic/Saddle #1670 SOLD Double your happiness.....complain half as much.