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12-12-2012, 09:30 AM | #126 | |
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Failure due to the choice of oil is rare to begin with. Oil that is not up to snuff creates premature wear, but that takes many, many thousands of miles to manifest (and the warranty period is long gone by then). Actually this is my primary reason for choosing Amsoil, as I think it will delay this type of wear better than some other oils and I plan on keeping the car a long time. Obviously by failure due to lubrication I am not referring to mechanical failure due to a broken oil pump, plugged pick up, bad or leaking filter, or a blown head gasket, or failure to install a drain valve, etc ad nauseum. But those could not be blamed on the oil, if the oil meets or exceeds the OEM specifications. I think if you follow Amsoils guidelines there will not be a problem with sludge, because I haven't seen any evidence of someone who uses amsoil having that kind of problem, even if they are doing extended changes. And failure due to lubrication in a non-turbo engine isn't that common to begin with. I haven't driven behind many old Subaru's blowing smoke out the exhaust. Most cars get junked for other reasons.
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Last edited by Zeeper; 12-14-2012 at 08:45 AM. |
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12-12-2012, 09:35 AM | #127 | |
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12-12-2012, 09:40 AM | #128 | |
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Now if you forget to put oil in your engine, or you let the dealer do that, you deserve what you get. The odds are if you do your own oil changes you are less likely to have an oil related issue. I haven't heard of a single person here who overfilled their engine with oil when they changed it themselves! Last edited by Zeeper; 12-12-2012 at 09:46 AM. |
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12-12-2012, 09:42 AM | #129 |
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If in doubt, don't use Signature Series.
I'm fine with crawling under my car every 5k miles, and then putting Amsoil OE 0W-20 into the crank case, which does have the API stamp. This gives me a chance to look around for other problems, which is always a good idea. So you see, I'm not trying to reduce the frequency of my oil changes, as they give me an excuse to be under the car, which is good to do periodically anyway. |
12-12-2012, 09:46 AM | #130 |
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I'm tempted to use the OE but as mentioned earlier in the thread I'd like to actually make it close to 5k miles before having to change the oil. this will take me approximately a year.
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12-12-2012, 09:49 AM | #131 | |
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With Signature Series, you at least have one company providing affirmation that it is ok to do that. |
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12-12-2012, 09:51 AM | #132 | |
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12-12-2012, 09:54 AM | #133 |
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I haven't decided at what point I will switch to Signature Series in my Impreza. I'm thinking 10k - 20k miles. I don't want to do it when the engine is too tight - for example, race engines are built loose. I figure when the mpg's taper off it will be adequately broken in. I've been running Amsoil throughout my Corolla for over 150k miles and as I've said, although it's rated the same as the Impreza it gets about 8 mpg better on the highway.
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12-12-2012, 09:55 AM | #134 |
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12-12-2012, 02:31 PM | #135 |
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so I've been doing a lot of reading about amsoil today, really trying to get a feel about what the right decision is. I'm tempted to go with amsoil OE and just follow manufacturers 7.5 month intervals (I def won't hit 7500 miles in that time). what I'm not clear about is if OE is really any better than anything else out there. It's a type III motor oil just like most other "synthetic" oils.
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12-12-2012, 02:54 PM | #136 | |
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I like Amsoil and drive under 10,000 miles a year so doing an annual change with Signature Series is what I feel fine with. I'm doing the same schedule with my wife's 2011 rogue that sees 15,000 miles or under. If we were not keeping the cars for a long time, my wifes rogue would not have synthetic oil in it (not required) and I would be using whatever 0W-20 oil is on the shelf at walmart (Starts with a capital M and has a number not larger than 1 on the bottle) and I would change it every 7.5 months or 7,500 miles, whichever came first. That is all you need to maintain the warranty and keep the car running until it is traded or sold to someone else. Last edited by Zeeper; 12-14-2012 at 08:49 AM. |
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12-15-2012, 09:48 AM | #137 |
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so i bought amsoil PC. when do I get the number? why can't I log into their website? why does the website claim it doesn't know my e-mail even though they sent me a confirmation that I just paid them $10. bastards....
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12-18-2012, 12:58 AM | #138 |
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Amsoil OE is fine for 7500 mile interval correct?
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12-18-2012, 06:47 AM | #139 |
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12-18-2012, 07:02 AM | #140 |
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the guy I'm looking at buying the oil from has a limited supply of XL (which is what I was thinking of running for a few years and doing the 7.5 month intervals). I may just go with the OE if he has a good amount of that. I just can't bring myself to go with the SS without that silly API badge on there. if burning oil is as common as it seems I don't want to risk doing anything that the dealership can question me on. Backed by Amsoil or not it just doesn't seem worth the hassle. Later on when I feel pretty confident my car isn't burning oil I'll consider the switch and going for longer intervals.
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12-18-2012, 08:24 AM | #141 |
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For now, I use Amsoil OE and a 5k OCI. At my next oil change I'm going to send in an oil sample for analysis. If the lab says the OE has life left in it at 5k, then I'll jack up my OCI to 7.5k.
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12-18-2012, 08:28 AM | #142 | |
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12-18-2012, 09:19 AM | #143 |
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I think they could. According to amsoil it is the amount of phosphorus or something like that that would make them not pass the test.
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12-18-2012, 12:54 PM | #144 | |
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Quote:
http://www.api.org/certification-pro...-09-01-11.ashx |
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12-18-2012, 01:13 PM | #145 |
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Flyboy, if there's a particular section of that 28-page document you'd like us to focus on, that would be helpful.
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12-18-2012, 01:21 PM | #146 |
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12-18-2012, 01:21 PM | #147 |
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page two mentions the different classes of oils at the very least. they are mentioned other places as well. i guess the point is that they do in fact have guidelines for class IV and V oils.
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12-18-2012, 01:27 PM | #148 | |
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The API establishes the guidelines for certification, it is up to the manufacturer to have the oil tested if they choose. The API really doesn't care if it is manmade or it came out of the ground, they are just in the testing business (as far as this topic is concerned) |
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12-18-2012, 01:45 PM | #149 |
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Out of curiosity, has anyone tried G oil? Have had a handful of people say its great, thought I would check it out and they do offer a 0w20 full synthetic.
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12-18-2012, 01:46 PM | #150 |
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i'm 1/2 tempted to try out the Mazda 0w-20 at my next change
http://www.bobistheoilguy.com/forums...25&nt=3&page=1 this is what I'm using now, and it is proving to be great oil http://www.bobistheoilguy.com/forums...gonew=1#UNREAD |
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