samneric Posted September 14, 2007 Share Posted September 14, 2007 Ok, So am I the only one breaking the mold here? I scanned the forum and as expected, all oil pressure issues tend towards the low side. So why did mine sit just under the high red line for the first 15 mins of driving and then slowly fall back to normal???? :-\ I check the oil which was above low on the dipstick. Wierd, is this a natural occurance of these mystical engines? Steve Link to comment Share on other sites More sharing options...
Jerry DeMoss Posted September 14, 2007 Share Posted September 14, 2007 Mine is pegged at max all day long. I know the sending unit is bad but I know my oil pressure is right where it should be. Listen to your ea81 and it will tell you anything you would like to know. Link to comment Share on other sites More sharing options...
nipper Posted September 14, 2007 Share Posted September 14, 2007 You get to hear the same thing as everyone else :-p Get a mechanical gauge. Oil pressure being pegged for 15 minutes or less is normal. It takes 3x's longer for oil to warm up and thin out, as oppsed to how quickly coolant warms up. Depending upon the oil your running, this is probabaly normal. Don't use any cheapo or poor qaulity filters. nipper Link to comment Share on other sites More sharing options...
85T-REX Posted September 14, 2007 Share Posted September 14, 2007 Mine is pegged at max all day long. You probably have a pressure switch instead of a sensor. The switch is for the models with a light and it will peg the gauge. rex Link to comment Share on other sites More sharing options...
Jerry DeMoss Posted September 14, 2007 Share Posted September 14, 2007 Don't use any cheapo or poor qaulity filters. Yep I agree. I use royal purple oil and run with a k&n oil filter. My ea81 is a bit spoiled. Link to comment Share on other sites More sharing options...
Ginger48 Posted September 14, 2007 Share Posted September 14, 2007 Yep I agree. I use royal purple oil and run with a k&n oil filter. My ea81 is a bit spoiled. An interesting read on oil http://www.ganoa.org/Motor_oil2.htm Link to comment Share on other sites More sharing options...
nipper Posted September 14, 2007 Share Posted September 14, 2007 Once again Consumer reports doe a half-rump roast job. The hardest time on an engine and oil is the cold start. By using taxi cabs, the oil always stayed warm and at its best. the oil never had to deal with acid producing conditions. I dont see anywhere that they did a true oil analysis between changes. Thats where you find out what metals are in the oil, and how much. This tells you the wear on the engine. Weighing bearings to look for wear means nothing ( I wonder where they get their "engineers" sometimes). What they should have done was check bearing clearances and tolerances of the engines after the test. I would like to see what failures knocked taxis out of the tests. Using taxis mean using multiple drivers, that have different driving styles. They also dont state what season it was. The "test" is basically useless for any good information. Keep in mind that they also are not fans of people holding on to thier cars past 100,000 miles. Almost everyone suggests that you change oil closer the heavy use figures for real world driving. Its best to start thinking about chaining oil at 5000 miles (tht means by the time you get to it its closer to the 7500 ). I really see no useful information anywhere in that report. The only thing that is correct is that oil viscosity tends to all become the same with time. The varnish buildup is just blown off, and actually thats very telling. Its one of the reasons you do oil changes. I truly doubt they had the budget to use as many rebuilt engines as one needed to even come close to accuratly do the test. Here are the REAL tests for engine oil http://www.performanceoiltechnology.com/lubricanttesting.htm I am not endorsing Amsol, just they have all the information in one spot. nipper Link to comment Share on other sites More sharing options...
samneric Posted September 14, 2007 Author Share Posted September 14, 2007 Yep I agree. I use royal purple oil and run with a k&n oil filter. My ea81 is a bit spoiled. Thanks for the advice all, I was a little concerned there for a moment.... I already have a v8 in pieces because of lubrication issues - did naaaay want my Subie pushrods mixed up with the Chevy rockers I'll take care of the boxer service when I can give it more time. I put Royal in my EA81 also, ran my wrex on it for 5 years too. I even talked the bus driver on my route into going Purple Maybe the Sube was taken aback by the weather change today. Its been in the 90's even up to 110 with the index recently but we've come across a rainy and cooler spell. Steve Link to comment Share on other sites More sharing options...
Ginger48 Posted September 14, 2007 Share Posted September 14, 2007 Once again Consumer reports doe a half-rump roast job. I really see no useful information anywhere in that report. nipper Professional ASE certified mechanics DON'T agree with you! Link to comment Share on other sites More sharing options...
nipper Posted September 14, 2007 Share Posted September 14, 2007 Professional ASE certified mechanics DON'T agree with you! Well I am a certified ASE mechanic and i agree with me. You dont just leave out bad information form a report because the other cabs had some sort of failure. Also I know a lot of ceritified techs who make lousy engineers. Its a BS report, no real data, no real numbers. If They were managing my fleet of vehiclas and didnt at the very least have oil analysis done, I would fire them. The ones i DO beleive, is the oil testing done in long haul truckers. There the samples are much more consistant. But then again, I am just stating the facts of what oil does and how it does it and what it is expected to do. I applied for a job with consumer reports not too long ago. They dont Have automotive engnieers on staff, nor do they have ceritified techs. They have general engineers. Personally I wouldnt want a engineer that is reviewing a toaster telling me which car to buy, the same way I wouldnt tell him what toaster to buy. They love to ignore standard testing procedure and data collection to sell magazines. nipper Link to comment Share on other sites More sharing options...
nipper Posted September 14, 2007 Share Posted September 14, 2007 And a side note, you may find this interesting http://www.ilma.org/resources/impact_lowqualityoils.pdf Stumbled over this about synthetics http://www.epa.gov/otaq/consumer/devices/r99001.pdf This is what a valid tests looks like (this is more emissions based, but thats still something that has to be taken into account. They also mention standard test methods and breaking in fresh engine oil in test conditions to get everything on the same level). http://me.engin.umich.edu/autolab/Publications/Adobe/P2002_03.PDF http://www.soslube.com/aquicklook.html Also where is consumers control group. Without a control group the tests is worthless. I am bowing out of this thread, as its safer to talk poltics or religon then oil. nipper Link to comment Share on other sites More sharing options...
daeron Posted September 15, 2007 Share Posted September 15, 2007 I am bowing out of this thread, as its safer to talk poltics or religon then oil. nipper Logic, why don't they teach Logic in these Schools!!! I always thought it Ironic that a company tries to sell magazines that tell you what is the best product to buy. I don't put too much faith in anyone trying to sell me something. Link to comment Share on other sites More sharing options...
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