Renboy Posted August 19, 2008 Report Share Posted August 19, 2008 So even a KL-ZE wouldnt need premium fuel since its compression is 10:1. Besides octane rating, premium gas does have cleaning additives that keep it clean while regular doesnt. Right? I never run premium in my KLZE. 10:1 is not a high compression engine by todays standards. Blocks are not cast iron, they're aluminium (faster heat transfer), have egr valves (lower combustion temperature), coolant temp sensors, variable speed electric fans, knock sensors, and a bunch of other crap to prevent any damage to the engine. And high mechanical compression is much more prone to knock than boosted compression. 30 years ago you needed av.gas to run a car with 11:1 compression, today the corolla s has 11:1 compression (91 octane recommended). On todays cars I would put coolant flushes ahead of octane for reliability. Quote Link to comment Share on other sites More sharing options...
latinopikachu Posted August 20, 2008 Report Share Posted August 20, 2008 crap shit coro**a Quote Link to comment Share on other sites More sharing options...
///BHRpowered Posted August 20, 2008 Report Share Posted August 20, 2008 REQUIRED lat when your car dies or has serious problems you lose all rights to complain if you cheap out Quote Link to comment Share on other sites More sharing options...
Renboy Posted August 20, 2008 Report Share Posted August 20, 2008 BHR, when yours is all carb'd up and the pcm has to retard the ignition timing to the point that a corolla will flat out blow your doors off...you lose all right to complain. Quote Link to comment Share on other sites More sharing options...
aamerh Posted August 20, 2008 Report Share Posted August 20, 2008 I had to get the inspection done today and at 25mph HC(ppm): 46 CO%: .67 CO2%: 14.6 Nox(ppm) 37 DilutionL 14.66 how does this look? Quote Link to comment Share on other sites More sharing options...
enginph Posted August 20, 2008 Author Report Share Posted August 20, 2008 I had to get the inspection done today and at 25mph HC(ppm): 46 CO%: .67 CO2%: 14.6 Nox(ppm) 37 DilutionL 14.66 how does this look? Looks like high octane? Quote Link to comment Share on other sites More sharing options...
mackin Posted August 21, 2008 Report Share Posted August 21, 2008 i've been using high octane for quite a while, and no corolla will beat me, i assure you. i can keep pace with my dad's 2005 Maxima SE at highway speeds. and thats stock with 120,000 miles.. Quote Link to comment Share on other sites More sharing options...
Renboy Posted August 21, 2008 Report Share Posted August 21, 2008 I had to get the inspection done today and at 25mph HC(ppm): 46 CO%: .67 CO2%: 14.6 Nox(ppm) 37 DilutionL 14.66 how does this look? Looks like high octane? HAHAHHAHA!!!! That was the first thing I thought of when I saw those numbers. Quote Link to comment Share on other sites More sharing options...
aamerh Posted August 21, 2008 Report Share Posted August 21, 2008 ugh lol I entered one wrong. CO% should be 0.06 but the rest is the same Quote Link to comment Share on other sites More sharing options...
///BHRpowered Posted August 21, 2008 Report Share Posted August 21, 2008 looks like your using the correct gas, and my engine is clean as a whistle, when they did the air/fuel professional flush less then saints 2nd attempt came out. ideally I would perfer more emissions, stop gore/bull warming, if your getting reduced emissions from lower octane (which your not on an equal fuel weight basis) its because your engine is only performing at 75-80% of what it should. A excellent chance to test this would be more people coming to MWM08, and we change my VCG's, allowing a first hand look at how clean my millenia is. Quote Link to comment Share on other sites More sharing options...
enginph Posted August 21, 2008 Author Report Share Posted August 21, 2008 Can you see inside the cylinders during VCG change? 75% because of 2 octane lower? ROFL Quote Link to comment Share on other sites More sharing options...
///BHRpowered Posted August 21, 2008 Report Share Posted August 21, 2008 you would see sludge and other issues. It was just an offer to farther prove my point, but then again you think the MCE is 8:1 when it is infact 10 remove the supercharger and run you 8:1, see if the engine runs at all even on the correct gas, oh right it won't, because its not 8:1 Your sounding more and more like a 2.5 owner Quote Link to comment Share on other sites More sharing options...
enginph Posted August 21, 2008 Author Report Share Posted August 21, 2008 you would see sludge and other issues. It was just an offer to farther prove my point, but then again you think the MCE is 8:1 when it is infact 10 remove the supercharger and run you 8:1, see if the engine runs at all even on the correct gas, oh right it won't, because its not 8:1 Your sounding more and more like a 2.5 owner The intake valve closes at 30degrees, i wouldnt call it compression when the intake is open. That makes the compression ratio 8:1. If you modify cams as Ren's plan, it would be 10:1. Thats how i define compression.. Quote Link to comment Share on other sites More sharing options...
///BHRpowered Posted August 21, 2008 Report Share Posted August 21, 2008 well every other engineer in the world disagrees remove your s.c and run around at your 8:1 Quote Link to comment Share on other sites More sharing options...
Renboy Posted August 21, 2008 Report Share Posted August 21, 2008 Sludge build-up in the head where the cams are has nothing to do with octane. Given your milly is like a prisoner that isn't allowed out side but gets it's oil changed (far too often) then your heads should be clean. I am curious though, why would someone who claims their car is in immaculate shape offer it up to have the valve cover gaskets replaced unless there was a problem with it? Not to mention to have them replaced by people that aren't Mazda mechs wearing white gloves in what I can only imagine is an outdoor park? Quote Link to comment Share on other sites More sharing options...
///BHRpowered Posted August 21, 2008 Report Share Posted August 21, 2008 ren, as per previous posts you may not have seen, upon a pre-drive inspection I noticed nothing, there are no spots on the ground at all, yet after the drive, which included some racing with a bike and substained 100+ mph conditions I noticed about 2-3 droplets of oil in the corner slightly above the alt I spend an hour searching for any other traces and have found nothing, I'm extremely displeased, none the less will be taking care of it before it becomes a problem. And thats the difference, I'm also bracing myself for tommorrow morning when I stop to see several 01-02's on the way to MWM08 Quote Link to comment Share on other sites More sharing options...
enginph Posted August 21, 2008 Author Report Share Posted August 21, 2008 I still keep loosing oil that i dont know where it goes. I again checked VCG this morning, nothing visible. No white/blue/black smoke from the exhaust after cold/hot start. I dumped 5 qts. of oil (with small oil filter) in total since the last oil change 3300 miles ago. I am at low on the dipstick now!! That is about 2 qts in 3300 miles! It started after i shifted to supertech synthetic from dino oil. I will change to M1 high mileage with large napa filter that Ren suggested this coming saturday. Hopefully it stops loosing oil this time... Quote Link to comment Share on other sites More sharing options...
Renboy Posted August 21, 2008 Report Share Posted August 21, 2008 That's a lot of oil to lose, I lose about a litre over the course of 7000kms, and I do have leaky vcg's. You sure you're not burning it? ren, as per previous posts you may not have seen, upon a pre-drive inspection I noticed nothing, there are no spots on the ground at all, yet after the drive, which included some racing with a bike and substained 100+ mph conditions I noticed about 2-3 droplets of oil in the corner slightly above the alt I spend an hour searching for any other traces and have found nothing, I'm extremely displeased, none the less will be taking care of it before it becomes a problem. And thats the difference, I'm also bracing myself for tommorrow morning when I stop to see several 01-02's on the way to MWM08 Didn't know that. I'm sure the dealership will be more than happy to fix it for you. Should only cost about $900. Quote Link to comment Share on other sites More sharing options...
latinopikachu Posted August 22, 2008 Report Share Posted August 22, 2008 I was thinking of switching to royal purple. Bad idea at 120k? Quote Link to comment Share on other sites More sharing options...
enginph Posted August 22, 2008 Author Report Share Posted August 22, 2008 At idle under sun hot or cold i dont see any blueish smoke. Idk where it goes. I noticed oil pan is leaking from a corner after switching to synthetic but i cant see 2 qts. leaking from that wet spot. No sign of oil drops on my parking spot either. Quote Link to comment Share on other sites More sharing options...
latinopikachu Posted August 22, 2008 Report Share Posted August 22, 2008 so, royal purple at 120k, any feedback Quote Link to comment Share on other sites More sharing options...
///BHRpowered Posted August 22, 2008 Report Share Posted August 22, 2008 My old jeep burned maybe 1/4th of a quart between 3500 mile oil changes but thats it. Alot of people talk about royal purple, but is really no different then mobil1 or valvoline or amsoil (which people also bitch about) just food coloring. That being said if places would actually sell it I wouldn't mind testing it in the Jeep Quote Link to comment Share on other sites More sharing options...
enginph Posted August 22, 2008 Author Report Share Posted August 22, 2008 so, royal purple at 120k, any feedback What r you using now? Quote Link to comment Share on other sites More sharing options...
SteveSter Posted August 22, 2008 Report Share Posted August 22, 2008 You cannot compare Mobil1 with RoyalPurple or Amsoil. Mobil1 is hyped up alot for no reason cause believe it or not it didnt do so well in some test they had put several different oils against. Amsoil and RoyalPurple were vey high on the overall list. HP wise RoyalPurple did better than all of them and Amsoil did the best in Cleaning. I wish I could find that test again to show you but I cant find it. Quote Link to comment Share on other sites More sharing options...
Renboy Posted August 22, 2008 Report Share Posted August 22, 2008 Mobil1 isn't even a true synthetic oil, it's just a refined dino oil. Amsoil, Motul and Royal Purple are THE best oils you can buy. Royal Purple being the least expensive of them. If you want to use Motul you have to put a down payment and mortgage your oil changes. Quote Link to comment Share on other sites More sharing options...
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