ski

I've been seeing the commercials for new Mobil oils that last for
5,000
7,500
15,000 miles

What the... I mean, if you drive a beater/cheap car, this could really save time/money on changing oil. Like if you're a cheapo and you buy a Hyundai or something and get the 15,000 mile oil, you'd only have to change the oil 6 times in its life? Is this stuff for real??

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cheapchinese

any links??
i'm interested

hoey222

amsoil is similar - they say 25000 per change - change filter every 6 months.

fully synthetic oils really do hold up very well - i've seen several engines with well over 100k on em. nothing but amsoil or mobil 1 was userd and they were spotless inside.. ...

they also cost 3-4 times as much as conventional oil - but you save on the changes

here some links for review

http://www.synthetic-oil-tech.com/d...._vs_mobil1.htm

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attgig

http://www.gotapex.com/forums/showth...ighlight=mobil (Amsoil vs Mobile1... also, longevity & filter replacement.)
there were a couple discussions a while ago...some interesting links to synthetic studies.

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DarkFury

Actually, that is basic blend... (XL Series)

the newer AMSOIL Series 2000 supposedly can go 35,000 miles or 1 year... which ever comes first. (This is what I use in my HEMI, but I ain't gonna be anywhere near 35K miles when I change it in October... )

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palayah8ta

Hahah some times i think Darkfury is an official amsoil vender. How much is one bottle of the 2000 series?

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DarkFury

I am.

They sell for about $9 per quart.

Showtime

Note to self: Change oil ASAP.

-j

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palayah8ta

Wait seriouslly? haha

So thats $36 (+$10 filter) a year on oil!!! Thats sweet. I would save like 100 a year. I change my oil every 2 months. for some reason if i wait till 3 months, i get Vtec lag, and my oil comes out chunky. I only drive about 500miles a month, but its all city.. Maybe something is wrong with my car?

DarkFury

Wow... your car only uses 4 quarts of oil.

My T-Bird uses 5.5 quarts and the HEMI takes 7 quarts.

But still.. it's cheaper than getting 4 oil changes a year. BTW... the quality of your oil filter and your air filter have something to do with it as well. Are you using an "open element" filter on your car? If so, then you are probably pullin' in a bunch more contaminates than someone with a standard airbox would.

smithicus

You know the funny thing is that oil has been improving for a long time, Car engines are being built better and more efficient. Why do they still recommend oil changes every 3 to 5k miles. You would think that with the oil getting better and the vehicle engines getting better you would have to change the oil alot less than back in the days.

attgig

yeah...I didn't check my mileage until this thread, and realized I'm close to 6k. I should change it this weekend.

WhiskeyPapa

Only the oil manufacturers suggest 3k miles. Virtually every car nowadays recommends oil changes at 5k, 7k or more. The oil manufacturers have a financial interest in getting you to change every 3k.

I tried Valvoline synthetic in my Kia last year. I changed the filter at 6 months, and the oil at one year. I couldn't believe how nice the oil still looked and felt. So I put a synthetic blend in this time. It's been just over 3k, and it looks like it's almost ready for a change. I think I'll try Amsoil or Mobile 1 this time.

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Apex

The best idea is to send your oil to blackstone labs for analysis. Though oils may be ok for long periods of time, there are more issues to consider. Fuel dilutes it. There may be contaminates. Heck, the oil could thicken way past the original specs (ahem, amsoil).

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brainsmile

Any suggestions on filters? Should you get a flush first before doing a change to synthetic?

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mechmike0034

I am partial to ACDelco filters. Overall good filtration with reasonable price and easy availablilty. Here's an online oil filter study mentioned elsewhere in this forum.

Don't ever get an "oil flush". The machines were designed for the sole purpose of padding a service department's pockets, and most OEMs have Service Bulletins specifically condemning them.

GM, for example, says in TSB# 02-06-01-028:

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DarkFury

You got something you trying to say there... Apex?

Yes, that is highly recommended... if you have over 15K miles on the vehicle prior to the switchover.

In my T-Bird, which has 80K miles on it... I used the Amsoil flush prior to putting the standard 25k/1 year oil in. She still runs like a top and no oil leaks.

https://www.amsoil.com/storefront/aef.aspx (about $5 a bottle)

cheapie

i get the Mobil1 Full Synthetic at Wal-Mart. it's like $32 for the oil change. plus i get my tires balanced and rotated for free. not bad imho.

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Airencracken

Cept that wal-mart is evil. Nice sig by the way.



Then where the hell are our insider deals hmmmm?

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DarkFury

Well the chemical flush I posted earlier... you just add to your old oil... let it run in the car for 15 minutes and then drain the old oil out and refill with new oil.

This is recommended when switching from conventional to synthetic oil. But hey... folks is gonna do what they gonna.


Honestly, all sales of AMSOIL go through their central website/processing center... and unless you are one of those dealers that carries an "inventory" (which I am not).

mechmike0034

This page is three years old, but there's some good information to be had: http://www.nordicgroup.us/oil.htm

Apex

Search on bobistheoilguy.com. There's actually quite a bit of info on the thickening of amsoil oils.

Here are some Blackstone Labs oil analysis reports, none of which are even close to the 35k drain interval. Even with like 11k miles on the oil, we're talking about a 5w30 oil thickening to a 50 weight. Going 20-35k miles, these thinner Amsoil products are thickening to close to gear oil weights.

http://theoildrop.server101.com/cgi/...c;f=3;t=001789

http://theoildrop.server101.com/cgi/...c;f=3;t=001727

http://theoildrop.server101.com/ubb/...c;f=3;t=001987

The 5W-30 ASL and the 0W-30 TSO seem to be the absolute worst. The Series 3000 5w-30 is pretty good. They all thicken much more than off the shelf Mobil 1 (which, BTW, is $3.99 per quart at Kragen until 4/9/05 with coupon in the local paper). Iron and 4-ball wear tests seem pretty good though, so Amsoil does have its strong points.

If I was to use Amsoil in my vehicle, I'd be comfortable with a 5000 or 7500 drain interval. Every single report that comes back seems to show a dramatic increase in thickness after the 10k mark.

DarkFury

Ok c'mon Apex... In the example that you quoted, the guy was using the car as a taxi and did 11K miles in 2 months with stop/go and low speed driving situations... That's some EXTREME use there.

Heh... after a year (in October) I definitely need to find someone who can objectively test the oil from the HEMI. I do about 12K miles per year and so far I'm still running good on the same oil that I put in last October.

Would G|A be willing to sponsor an "objective" oil test of the results of the AMSOIL 0W30 oil... totally non biased? (lemme know if you'd be interested...)

Showtime

Maybe we would if it weren't a hemi.

Btw DF, did you see that 1000hp twin turbo kit for the hemi.
0-60 in 3.9 seconds. Quarter in 10 seconds... Hemi powered

Ha ha. Just playin ya.

-j

DarkFury

Yeah.. and the Lakers ain't makin' the playoffs this year.


(I just had to poke ya for bobbin' your head into the conversation... )



BTW... turbos are cool, but gas prices ain't.... I'm leavin' mine "as is" for now.

Showtime

see above

-j

Apex

Yeah, totally. A test is like $20.

DarkFury

Sweet... point me to where I should send the sample

Apex

http://www.blackstone-labs.com/standard_analysis.html

http://www.blackstone-labs.com/free_test_kit.html

ski

Hoohoo... it's so on