First of all, sorry to those who have seen this question before. I tried to do a search but it would seem oil has only 3 letters and the search engine will not allow words with less than 4 letters. I remember this question a while back but didn't get the final answer. I need to change my oil again and I would prefer to use full synthetic oil this time. Anyone have the answer?

Thanks
Clark

 

>>>>I use that in my 2002 SCrew 5.4 and in my 2003 Mustang 4.6. On each bottle of Mobil One 0W20 it states something to the effect that it meets the requirements of Ford and Honda engines requiring 5W20. Whether that means it will or wont violate the warranty is speculative. Go to Mobil One's website and they should have your answer. I'm fairly confident I remember reading there that it doesn't violate the factory warranty. But like I said if you don't get your answer here go there to their site, research it, and if you don't find it email Mobil Oil and ask them.

 

What's the difference in using a synthetic oil or regular oil? Is one more beneficial than the other?

 

clarkn

Page 233 in the owners manual shows the oil
specification number.If Mobile One has this
number it is ok to use it.

Mike

 

Short answer to a complicated question...NO, the use of Mobile 0W20 will not void your warranty.

Short answer to benefits of synthetic oil vs. dinosaur juice.

Synthetic oils:

- Have greater lubricity...at the molecular level, they are more slippery and maintain viscosity longer.

- Have higher resistance to thermal breakdown.

- Due to the absence of sulphur and other elements that provide the recipe for the formation of acids, varnishes, etc., oil longevity is greater.

There are too many other benefits to list. Drawbacks include expense of synthetics and their propensity to blend with water from combustion and condensation.

The '04 F150 uses OEM synthetics throughout the drivetrain.

 

The benefits of synthetic oil vs. dino depends on how often you change your oil. If you’re going to change it, say every 5,000 miles regardless the type of oil then synthetic has no real advantage over dino. If you going to go longer like every 10,000 miles or so then it does have benefits that outweigh dino.

I change my oil every 3,000 – 3,500 miles and use a blend, Valvoline Durablend and I can tell you that is just as good of protection as using a synthetic and going 7,500 – 10,000 miles and a little bit cheaper.

The 0, in 0W-20 will be better for start up wear then the 5, in 5W-20. The first number is the cold temp velocity of the oil and the second number is the normal operating temperature velocity of the oil so the 0 will flow a little better then the 5 in cold weather starting.

I don’t personally think there would be much difference in wear on a motor with 100,000 miles between using the 0 or 5, but that is only an opinion and even if the wear is a little less with 0 that is good nonetheless.

If you want to be safe as far as warranty just call your dealer and ask them about it. Nothing better then having the dealer tell you all is good…

 

No, Mobil designed it to the Ford spec so it can be sold to that market. It may be the perfect oil for the Triton engine if you are interested in paying the extra price for a synthetic oil.

Your engine will be cleaner if you run synthetic oil, and you can run a longer drain interval. It's a plus if you plan on keeping the truck a long time, but not necessary.

 

No.

 

I am using the Mobil 1 OW20. It exceeds Ford's spec's for the 4.6 and 5.4 3V.. It is a full synthetic oil (basestocks and all).. Not all synthetic oils are created equal-they use a dino oil basestock and synthetic basestocks and our court system told Castrol that it was legal to do when took to court by Mobil 1.. Mobil 1 0W20 oil is API certified. A full synthetic oil offers the best protection for your car or truck at the high and low ends of our temperature extremes. If you change oil every 3,000 miles-use a brand name dino oil. If you want the best oil and plan on changing your oil twice a year or every 7500 miles, the synthetic is the way to go.
Mobil 1 will not void your warranty. If an oil warranty arises, keep records of your oil changes.

 

Many people, who are pro-syn oil told me not to use synthetic oils
until 5,000 miles. This allows proper breakin for the engine like
to seat the piston rings properly.

Agian, I'm not the expert. Just passing on what appears to be
reputable mechanic advice.

I also saw internal pics of engines comparing dino and full syn.
There is a dramatic increase in the build up of resins with dino.

The engine running synthetic (100%, not blended) were spotless.

 

Thanks to all for you inputs; I guess Mobil 1 it is... Gonna stick to the factory filter as it weighs twice what the Fram does and that can't be a bad thing.

Clark

Hey 97cobraguy cool Lariat badge on that FX4!!!

 

Look at the Mobil One oil filter.

 

ok, isn't the MC 5W30 a synthetic blend? If so how does this change the oil equation?

note:

Applications
Mobil 1 0W-20 is recommended for all types of modern vehicles, especially high-performance turbo-charged 4 and 6 cylinder gasoline and diesel multi-valve fuel injected engines including those found in passenger cars, light vans and trucks where a 0W-20 or 5W-20 viscosity grade is specified.

Benefits of Mobil with SuperSyn 0W-20

Classified as “Energy Conserving,” the highest fuel economy claim in the U.S.
Meets stringent European fuel efficiency standard M111.
Provides the quickest cold starts of any Mobil 1 viscosity, and offers faster protection than conventional motor oils.
Provides a wider temperature range of protection compared to 5W-20.
Exceeds Ford service-fill requirements, including Ford WSS-M2C-153H.
Exceeds the motor oil requirements for all new Honda vehicles.
Exceeds API SL/CF and ILSAC GF-3.
Exceeds ACEA A1/B1.

 

Would amsoil be better than other synthetics

thanks ray

 

skiultr...the last time I checked, MC 5W30 was a conventional oil while MC 5W20 is a blend. Blends are a compromise of price/advantages...superior to conventional, but lacking all the technical advantages of fully synthetic.

01 XLT Sport is closer to the truth in this debate than many others who post on the basis of urban myth and emotion, i.e., regular oil/filter changes with an API Certified oil at reduced intervals of e.g., 3000-5000 miles are better than filling the sump with synthetic and running the interval to 15,000-20,000 miles.
Translation: an oil change with $1.77/qt syn blend (MC 5W20 at WalMart) every 3000-4000 miles beats syn oil changed at 15,000 miles...and the former is less expensive. Conversely, oil/filter changes at 3000-5000 mile intervals with SYN oil is the BEST alternative, but most consider the cost prohibitive.

It's true that oil does not wear out (although the long-chain polymers added to maintain viscosity get chopped into short-chains over extended periods of engine operation), but (HERE'S THE BIGGIE) the contaminates that build up (acids, varnishes, etc.) will kill an engine, especially bearing surfaces, etc. And, if the filter is not changed every few 1000 miles, it fails to intercept and remove particles that cause wear to cam/lifter/ring/wall surfaces.

Bottom line: Go to Google, pull up SAE and API tech papers on motor oils and become technically informed on the subject. There is too much misinformation on this subject. This thread could go on for 500 pages and never arrive at the facts unless technical knowledge is acquired to dispel myths and make informed judgements.