Oil pressure too high???

Have you heard this from the quick oil boys? Oil pressure is too high. Therefore you need to tear down engine and clean it out. Isn't this nearly impossible? Comments please. OT as usual, sorry.

I wouldn't beleive ANYTHING a quick lube shop kid says.Most can't get a simple lube,oil and filter job done right!

Well it is possible to have too high an oil pressure. Tight bearing clearance and high relief pressure setting. High capacity oil pump would also do it. You would know it by having washed out bearings. My corvette has 80 psi cold.

So how was the high oil pressure established and what specification was used as comparison?

I also would be suspicious.

How can he tell most autos now don't have gauges that say how much pressure you have.
My Saab Sonett had 80 PSI all the time. A lot of engines will run in the 40 to 50 range, we had some Chevy 350s would run as low as 5 lbs at idle 25 to 40 at operating speed. Without the specs from the manufacture its real hard to know what it should be.
Walt

i think their brain pressure is too high where do they come up with this stuff?and then again to further confuse these people i would say i've have my engine vacumed before each oil change lol

Yes you can have oil pressure to high but it does not happen often. I had a Vega years ago that used a lot of oil so I tried some of that snake oil engine fix stuff and it caused the oil pressure relief valve to stick closed and that in turn caused the oil pressure to be to high and blow out the oil filter gaskets, That was a $5 snake oil fix that cost me about $200 in the long run

10 psi per 1000 rpms is a good rule of thumb!

I'm with Bradk on the quick lube shops. Nothing but a bunch of crooks in my opinion, at least the ones I have been exposed to. Some of the stunts they pull to get you to buy some extra service border on illegal.
You can have too high oil pressure caused by relief valve sticking shut, can't think of anything other than that to cause it on an engine that has been running OK. Lots of causes for low pressure, not many for high. I am assuming that this happened to an engine that has been ok, not after an overhaul, oil pump replacement, etc. Just my opinion,
Paul

If you "do the math" there is not very much profit in changing oil, even if they use the "reconstituted" (recycled) cheaper oil version of what they should be using.(I would not put that crap in my vehicles, maybe we should pay them with Conferderate Money?)
The real profit is in pushing services that are either not needed, or they are way over priced because they have you captive. They are trained to have a customer "conference". They try to establish fast trust by first being very "friendly" telling the good things. (Note to self: don't go to oil change places trying to make a new friend) They push air filters at higher prices, even when they may not be needed. Like an angel from Heaven, they tell you what "problems" they happened to find while under the hood. You are made to feel lucky to have stopped in this place to have your oil changed. (yea, right) If you are female and by yourself, it can be even worse.
One of the profit makers is the infamous transmission flush for ONLY $99.00. They will even tell some customers that the "manager" is running a special and they can get that done for only $XX.XX today and today only.
If you have a higher mileage vehicle, and they back flush it, you could begin to have problems with a tranny that was working fine.
What really needs to be done is to drop the bottom pan, change the filter, clean up the magnet (if it has one), and add back the correct amount of fluid. This is IF you have never run the tranny hot or low on fluid. If that is the case, a rebuild is what you need.
The fleecing of America will likely never end until we all get smart in all topics.

Like everybody says,in that case,yes. It is possible though. The old Olivers had a little ball in the oil filter base under the tube that went up inside the filter. If that was gone,you could blow the gasket out of the filter. But "Quik Lube" is full of it.

Put 0W20 winter oil in the engine and then look at the oil pressure.

Last time I went to a quick change place was somewhere around 1992. The wife and I had just been married for about a year or two. We gave them the keys and waited for the 10 or 15 minutes it took. They came in and said the air filter should be changed. I knew what they were aiming at, but I said go ahead. Afterward we paid and left. Got to the end of the parking lot and the engine died. Started up and it died again. Went back and told them about it. They told me something like the engine problem was because of the old air filter being clogged. Long story short: that's your problem buddy.

I left and got on the road. Engine would only run when I had my foot on the pedal. As soon as I let up and it went to idle it would die. I popped the hood and had my wife start it and run it while I listened. Simple....they had knocked a vacuum hose loose. Reconnected, end of problem.

So, I do all my own maintenance from that day to this. If it is something beyond my tools, expertise or time available, I take it to the best mechanic in town.

Since then haven't had problems.

Christopher

Thanks for coming through fellas, I thought I smelled a rat. Happy new year too.

Oil pressure can be real high with thick oil, on a cold morning. If you have thick summer weight oil, at least put a preheater on the block, and raise the temperature, before attempting cold weather starting.

like the others have stated, these quick service shops rely on getting you in the door and then "UPSELLING" the customer on additional servce work,normally not required. we recently had a muffler chain store move in to town, not to say the name but its named after a famous wizard from king arthur. anywho, they had a 20 dollar oil change special and one of my techs brought his neighbors car up there for the oil change. they handed him an estimate for 1800.oo to rebuild the front suspension. car was a late model buick with about 55k on the odometer. we had replaced the front struts about 4 months earlier due to leaky seals. they tried to sell him new struts, ball joints, tie rods, and front brakes. i went up and confronted the manager, and had our paperwork of the recent repairs and alignment print out. his response was, oh...gee my tech must have given them the wrong paperwork. i just cant stand shops that try and pull nonsense like that.

What's too high? Did they put a good gauge on it? I had a coupon for a free oil change and lube job at a chain quick lube shop. They took the air cleaner hose off and because it was black in the intake, tried to sell me some kind of $69 intake and combustion chamber cleaning. I declined but later bought a $4 spray can of intake cleaner. When they were finished with the oil change, they tried to say the coupon was for only 5 litres and I needed 5 1/2, so there's an additional $2 charge and then $3 for shop supplies. I showed them the coupon and asked them to show me where it said 5 litres max. and shop supply charges. "Well we won't charge you this time"! It would have been false advertising and I think they knew it. However, I go to a single bay, non chain, quick lube shop and they charge about $40 for an oil change and lube job and top up all the fluids as well. I've always had great service there. I don't have a garage anymore so it's a lot easier just going there. A big chain lube shop once charged me $80 and the only thing extra I needed was an air filter. It was in a 6.0 litre Chev. truck. Dave