Oil Analysis of 11K Mobil 1 Ext. Perf.

pegasis0066 · 07-01-09, 05:43 AM

I have been using Mobil 1 Extended Performance oil for a while, always changing it around 5-6K. I decided to double that to see if there was excessive wear.

Below is the report from Blackstone.

Caveat - I know it is safer and in the long run less expensive to change any oil around 5K miles, however this result was interesting and good to know.

4Peanut · 07-01-09, 05:54 AM

Great information, thanks for sharing. What did your oil analysis cost with Blackstone?

Trunk Monkey · 07-01-09, 06:47 AM

I go 10k between changes with Mobil, both for cost and based on what you've found with Blackstone.

pegasis0066 · 07-01-09, 06:55 AM

Quote:

Originally Posted by 4Peanut

Great information, thanks for sharing. What did your oil analysis cost with Blackstone?

$22.50 plus $10 if you want TBN done.

007-FJC · 07-03-09, 09:46 PM

I just did my first oil change on my Cummins ISX at 34,000 miles. Engines and motor oil has came a long way.

HWY22 · 07-16-09, 12:14 AM

A good buddy is the Amsoil distributor here in Jackson Hole. So he got me to try the 0W30. He offered to also do oil analysis at 5, 10, 15 and 20K. Don't know if I have the ****s to go past 10K... Of course, filter will be changed every 5K.

Engine is definitely running smoother. I really do not know about the mileage increase claims. But I have a large Maggiolina Grand Tour on top right now and see no difference in mpg...

By the way, my 4 year old loves the RRT's so much - I am actually typing on the tent in the driveway with my boy snoozing next to me. He just really wanted to go camping...

Will post oil analysis report as I get them.

NMuzj100 · 07-16-09, 02:21 AM

Waste of time to do the UOA at 5k. The oil will still be "bottle fresh". Ditto for the filter get a Mobil1, Amsoil or Toyota OEM and let it ride. If you are changing the filter might as well change the oil.

The oil coming out of my truck is so good at 10k that I've considered running it in my Camry which gets short intervals to avoid sludge.

Quote:

Originally Posted by HWY22

By the way, my 4 year old loves the RRT's so much - I am actually typing on the tent in the driveway with my boy snoozing next to me. He just really wanted to go camping...

- Your son will remember that forever!

REDrum · 07-21-09, 10:10 AM

I drank the synthetic "kool-aide" years ago...

I owned an '86 K5 with a 350ci and always ran on Mobil 1 synthetic in the crank case, changed every 6K. It now has 430K miles and still runs strong. (albeit the 700R transmission is another story...)

Today I run full synthetic Amsoil or Motul in my street and race cars religiously. I swap it out at 6K on the street cars and every other event for race.

I also use Motul engine flush every 3rd change.

If you buy synthetic at the right price and change it yourself at 6K its cheaper than jiffy lube every 3K with dino oil.

Ryan818 · 07-22-09, 11:24 AM

I've been using Royal Purple for the past 8-9 years. Always go 10k miles. The guy whom rebuilds our race engines said he's never seen an engine so clean after a season. Anybody else use RP?

SWUtah · 07-28-09, 07:18 PM

What do you guys think? Bought a new 2008 car the other day. Car had 80 miles on it and Mobil 1 from the factory. Oil had been in the car since built October 2007. I had the dealer put fresh Mobil 1 in the car when I bought the car. Do you guys think that was needed?

REDrum · 07-28-09, 07:29 PM

Quote:

Originally Posted by SWUtah

Do you guys think that was needed?

Only if mercury was in retrograde....

no!

Michael Hanson · 07-28-09, 07:32 PM

I think this will vary from cruiser to cruiser.Cruisers towing and on dusty country roads are going to be different from cruisers going to the mall. 2 cents Mike

NMuzj100 · 07-29-09, 08:43 PM

No, but change it again at 1,000 with a new filter for break in. Sitting basically sealed in a engine block doesn't harm oil.

Colicious · 07-31-09, 07:13 PM

hows the OEM toyota oil? is it dino or synthetic?

firewalker · 07-31-09, 09:16 PM

If you use synthetic does the recommended interval change?? I'm gonna be due and want to go with mobil 1 or royal purple.

dnp · 07-31-09, 11:17 PM

Oil analysis in the original post is no longer viewable. I am considering switching from Mobil 1 5W-30 to Mobil 1 5W-30 Extended Performance in both my LX and GX and going 10K miles between changes. According to Mobil's web site, if a quality oil filter is used (i.e., Mobil 1 filter), there's no need to change filters mid-stream. I don't know if I can "mentally" go 15K between changes, but if the oil analysis at 11K in the OP was good, I think I'll try the 10K interval with M1 EP and a M1 filter. (BTW, AutoZone's got a promotion going on in August: 5 qt. M1 + M1 filter for $29.99....slightly more for EP, but I can't remember exact price)

Anyone know the results in the original post? Thanks.

SWUtah · 08-01-09, 09:46 AM

Quote:

Originally Posted by dnp

Oil analysis in the original post is no longer viewable. I am considering switching from Mobil 1 5W-30 to Mobil 1 5W-30 Extended Performance in both my LX and GX and going 10K miles between changes. According to Mobil's web site, if a quality oil filter is used (i.e., Mobil 1 filter), there's no need to change filters mid-stream. I don't know if I can "mentally" go 15K between changes, but if the oil analysis at 11K in the OP was good, I think I'll try the 10K interval with M1 EP and a M1 filter. (BTW, AutoZone's got a promotion going on in August: 5 qt. M1 + M1 filter for $29.99....slightly more for EP, but I can't remember exact price)

Anyone know the results in the original post? Thanks.

Go to Welcome and look at used oil analysis, they have several with the 4.7 Toyota engine, it will go 10K+ miles with the regular Mobil 1 synthetic. The 4.7 engine is very easy on oil. Don't worry.

2000UZJ · 08-04-09, 12:18 AM

I'll be running mobil 1 in about 700 miles when I get home

any advantages to a sythetic? Cold starts? Engine wear? Etc?

LXPearl · 08-05-09, 07:53 PM

I have been running Mobil 1EP and it is still great after 10K miles. I am going 15K with M1 filter now. As SWUtah stated, the 4.7L is very easy on oil.

The quality synthetic oils have many advantages over dino. Flow, heat, surface protection, seals, viscosity stability, etc. The engine typically runs smoother and cleaner for a longer time.

On the other hand, if you plan to change oil at 3K miles, the quality dino oils have improved to where I do not see a cost benefit for synthetic, unless running extended drains.

You can peruse bobistheoilguy.com for a lot of info.

The dinos have additives to enable them to perform effectively. Those additives eventually wear away, which is why the Blackstone testing is done, it shows how much the oil and additives have worn away and if the engine components are showing wear. A quality synthetic has an excellent base oil for starters, with natural multivis qualities, excellent flow properties, resistance to heat breakdown, etc. Amzoil is considered the first true automotive synthetic. Mobil 1 EP is readily available and is an excellent product. The Autozone promo has been on for awhile and is a good buy. Mobil 1 EP is also available at Walmart. If you go 10-15K with M1 EP, you can save money and have comfort knowing you have a great oil for any weather or for heavy use.

Texasoil · 08-09-09, 04:20 PM

I , like Bob the Oil Guy, have lots of good technical experience in the lube oil field. Modern 10W-30, 10W-40, 5W-30, etc oils have a very high percentage of the very same molecules as the heavily advertised 'synthetic' oils. AMSOIL and Royal Purple ARE significantly better.

Under the right conditions, extended interval oil changes are OK--but WILL NOT meet the requirements of the manufacturers warranty. You MUST change oil and filter at/before the mileages/time recommended by the factory AND keep a written record and receipts or the manufacturer will tell you NO if an internal part fails--for any reason.

Oil is so cheap compared to fuel, tires, etc--why take the risk of major wear and deteriorating by stretching change intervals. Do the math. If you do 4000 mile changes at a 'quick lube' at $30 a time, that is a whole $720 in 100,000 miles. That cost is less than 5% of the fuel cost. The noise about running smoother, etc is B.S. Toyota is fanatical about reducing engine noise and vibration. If Royal Purple oil (or any other magic elixir) provided improved smoothness of operation, THat is what would be in them from the factory and REQUIRED as a special Dealer only product, just like the ATF for some vehicles is Dealer only avilable.

Lower viscosity oils reduce friction and improve fuel economy--at the risk of allowing more metal-to-metal contact and resulting wear. Oil is CHEAP, hard parts are EXPENSIVE.