New Mobil 1 Sythetic Oils?

[V8Cobrakid]

http://www.mobil1.com/USA-English/MotorOil...erformance.aspx

Here is a link to the 15,000k mile interval oil. It's guaranteed to last 15k miles between oil changes. For us prius owners, this could possibly give us 20k miles? Maybe even more. I, for one, would really like this product. I have yet to look at the price though.

I currently use Mobil1 Sythetic blend and like it. I have over 20k miles on my car (almost 25k) and have been using sythetic for a while.

There is also a 5k blend and 7.5k blend.

here's a link for the 5w-30 blend
http://www.mobil1.com/USA-English/MotorOil...ance_5W-30.aspx

I'm noting that they mentioned this: "Please follow the recommendations in your owner's manual while your car is under warranty." in the discription in the end. They say "A special oil filter is not required."

Now.. that prius post about a magnet in the drain plug comes to mind with waiting this long for oil changes.

What's everyone elses thoughts?

[V8Cobrakid]

Another Interesting piece from the webpage: Note: 15,000 is not on this list. Warranty issue? Under Warranty is one of the questions to get to this page.

What's the right oil for my car?

Our products in the viscosity right for your vehicle
We've taken what you told us about your vehicle and driving conditions, and using an auto industry database, have determined our products in the viscosity recommended by your vehicle manufacturer. To learn more about a product, click its name.

Current Vehicle:
Year: 2004
Make: Toyota
Model: Prius
Engine Type: 4 cyl. 1.5 Liter

View printable

Mobil 1 5W-30
A fully synthetic motor oil, Mobil 1 5W-30 with SuperSyn Technology, is the approved and the first choice of many premium car manufacturers, including Corvette.

Mobil Clean 7500 5W-30
Mobil Clean 7500 5W-30 is a synthetic blend motor oil designed to exceed engine warranty requirements. It delivers guaranteed performance and protection for up to 7,500 miles or 6 months, whichever comes first. Mobil Clean 7500 has 18 percent more cleaning agents than Mobil Clean 5000 to keep your engine cleaner longer.

Mobil Clean High Mileage 5W-30
Mobil Clean High Mileage 5W-30, a conventional motor oil, is designed for vehicles with more than 75,000 miles. It delivers proven protection of critical engine parts from lubricant-related failure for 5,000 miles or six months, whichever comes first. Mobil Clean High Mileage includes seal conditioner to help prevent leaks in high mileage engines.

Mobil Clean 5000 5W-30
Mobil Clean 5000 5W-30 is a conventional motor oil that delivers proven protection of critical engine parts from lubricant-related failure for 5,000 miles or six months, whichever comes first. It is designed to exceed most engine warranty requirements.

[V8Cobrakid]

If you de-select "under warranty" then 15,000 mile blend comes up as an option.

[V8Cobrakid]

hmm.. check this out. On test it out performs Mobil1 by a landslide. oil changes up to 25k miles or 1 years. meets or exceeds warranty requirements. Some people have reported running hundreds of thousand of miles with this companies oils. 400k miles on a diesel. many others too.

https://www.amsoil.com/storefront/asl.aspx

[efusco]

Interesting, I've seen the commercials and wondered what they would do/say about warranty issues. I guess they're not quite ready to sell the farm and claim you can go 15k while under warranty. I'll stick to Mobile 1 during my ICE warranty period at least.

[Ray Moore]

http://neptune.spacebears.com/cars/stories...s/oil-life.html

This website has an ongoing neutral third party test going on right now that compares amsoil to mobil1. I will stick with Mobil1 based on their results to date.

[mspencer]

According to those descriptions, though, only the Mobil 1 in that list is actually fully synthetic. The others seem to be a blend of synthetic and conventional, or fully conventional.

[jayman]

While under warranty, you had better follow what Toyota recommends. Here in Canada, oil and filter change every 8,000km or 6 months.

If you happen to use an oil that claims a certain time or mileage period, and something DOES go wrong, you then get into a p****** contest with Toyota and whomever made your oil. Good luck!

That said, it appears the Mobil 1 EP line of oils are not Energy Saving listed. They are designed for more severe service, they also offer a 10W-40 and a 15W-50, a viscosity usually used in high performance applications.

I intend to use Mobil 1 0W-30 while on warranty. If I still have my Prius off warranty, Mobil 1 0W-40.

[tochatihu]

Prius here is 2001 model year and I have been performing the oil and filter changes since the freebies ended at 37k miles or so. Now with 70k miles the longest I have left Mobil 1 synthetic in has been about 13k. This oil was analyzed at 7 and 13k (with an intermediate filter change at 7k) and was very good in terms of wear metals, silicon (dust), soot (ring blowby) and viscosity. I replaced the oil after 13k because the "total base number" (TBN) had fallen to a low level.

My intial indications are that this synthetic oil may be relied upon for 13k. Without knowing more about the filter, I would not talk about skipping the intermediate filter change.

I have put these oil analyses on yahoo before and am happy to post them here if needed. Please understand I am not able to assume liability for what you all do with your cars, but I will share my results. You make your own decisions.

[DanMan32]

To answer the poll:
Not unless you can tell me how the oil magically eliminates combustion contamination.