royal purple oil
#1
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Year: 96'
Model: Cherokee
Engine: 4.0 160k banks header dumping after the cat
royal purple oil
i've been wondering about this so i figured i would put it out there...my jeep always had regular oil pressure and it would increase at higher rpm and settle a little under 40psi at idle just like normal. THEN i put royal purple 10w30 in her and and (not only did it smooth things out throughout the entire rpm range, i have a 5sp) but it made my oil pressure spike to 65-70 when i get on it and at idle it just sits right around 60. it is not until i idle for a 5 minutes or so does it even begin to go back down to 40. now i know i our oil pressure sensors aren't known for accuracy but has anybody else experienced this? and i am thinking that maybe ,just maybe, royal purple might just be to crazy of an oil for my old tired I6. i mean c mon what oil is purple?
#2
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Year: 1998
Model: Cherokee
Engine: 4.0
please do a search on Royal Purple! you will be draining it tomorrow and using it to get your next bonfire going! Thats what i gathered from my research and my opinion too.
#4
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Year: 1998
Model: Cherokee
Engine: 4.0 L 6 Cyl.
could you elaborate a little...ive been looking it up and only found that its basically the best thing since sliced bread.
#5
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Year: 1998
Model: Cherokee
Engine: 4.0 liter
ive just read that it lubricates everything in your engine 5x better then conventinal oil. What is all your opinions and what about synthetic oil and high mileage oil.
#6
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Year: 96'
Model: Cherokee
Engine: 4.0 160k banks header dumping after the cat
i did some searching and i agree with the last two posts...i mean i've gone through two cycles of royal purple now in my xj and i really do like it don't get me wrong...i just thought it was kind of fishy what it does to my oil pressure which is why i started this thread...the only explanation i have for this is royal purples "dry protection" which means that it always leaves behind a protective film or something and this may be the reason...also i pay 8 buck a quart here in new jersey
#7
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Year: 1998
Model: Cherokee
Engine: 4.0
it bugging me i cannot find the thread i was looking for. what i did remember was high zinc concentration is what our 4.0s like. I guess its a horse apeace. You either love it or hate it. If i can find one instance that someone had a problem with a certain product (specailly oil) i will shy away. check out amsoil 10w 40 with zinc. or rotella seems to be one of the top pics.
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#8
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Year: 1998
Model: Cherokee
Engine: 4.0 liter
What do you guys think about high mileage oil is there any "ACTUALL" difference between regular oil and high mileage.
#9
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Year: 96'
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Engine: 4.0 160k banks header dumping after the cat
it bugging me i cannot find the thread i was looking for. what i did remember was high zinc concentration is what our 4.0s like. I guess its a horse apeace. You either love it or hate it. If i can find one instance that someone had a problem with a certain product (specailly oil) i will shy away. check out amsoil 10w 40 with zinc. or rotella seems to be one of the top pics.
#12
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Year: 1998
Model: Cherokee
Engine: 4.0 L 6 Cyl.
I'd really like to put the right stuff in my XJ, its not just an XJ...lol its my first car and for that reason alone I need to make sure she runs until....well forever. So If maybe we could get a vote? I dont really know much about oils, the do's and dont's and I really wish I did. So any knowledge on the topic is appreciated. As for that Royal Purple stuff, are the other oils listed in here as expensive? Can I pick em up at pepboys...or is this an online purchase?
#13
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Year: 96'
Model: Cherokee
Engine: 4.0 160k banks header dumping after the cat
I'd really like to put the right stuff in my XJ, its not just an XJ...lol its my first car and for that reason alone I need to make sure she runs until....well forever. So If maybe we could get a vote? I dont really know much about oils, the do's and dont's and I really wish I did. So any knowledge on the topic is appreciated. As for that Royal Purple stuff, are the other oils listed in here as expensive? Can I pick em up at pepboys...or is this an online purchase?
#14
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Year: 1999
Model: Grand Cherokee
Engine: 4.0
can't speak for the GC's, but I ran it in my 3g Eclipse for about 3 changes and noticed no change it operation. Now their gear lube (rp) for the trans made a world of diff, shifted and ran smoother.
#15
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Year: 1997
Model: Cherokee
Engine: 4.0
i hear nothing but bad stuff about all there oils , some guy i know tryed there gear oil in the rear of his race car and destroyed the rear in a weekend using that stuff