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I have an 06 F-350, V-10. The manual says that the recommended oil is 7 quarts of a synthetic blend, but that regular petroleum oil is acceptable.
My question is can you blend the stuff yourself and still reap the benefits of a commercially available synthetic blend oil. I would like to take 2 quarts of full synthetic oil and mix it with 5 quarts of regular, API "SM" rated oil. The reason is that by mixing my own oil, I can save maybe $10 per oil change. What do ya all think??
no dont mix them. and if its that bad where you are looking to save $10 per oil change, maybe you should trade it in and go get a hyundai....lol.....c'mon, you have an 06 f350, how much did you spend on your truck? how much gas does your truck consume? and you are worried about $10 every 3000 miles??????
Last edited by RACERX7775; Jul 23, 2007 at 12:53 AM.
If you look in your local parts store, you will see a variety of synthetic/conventional blends. Those will usually save you some mney over a full syntheic oil.
It's all a matter of preference. I use conventional and change the oil every 3000 miles, but just because I do that doesn't mean it is correct for everyone.
The Motorcraft Oil IS a Syntehetic blend. From what I've priced in my area Motorcraft oil and reg. dino oil are very close in price. I use full synthetic, but for the money Motorcraft is no doubt the best oil out there.
Gas, insurance and repair costs are way more per year than oil and filter changes so cost there is the least of my worries.
Check the specs in the owners manual for oil. Then check the container to see if it meets or exceeds the spec. If it states ok for use in>>> then that doesn't mean it meets the spec. I recommend you stay with the flavor you like that meets the spec. Check Mobile 1 0w40 full synthetic. It meets mercedes and ford spec for diesel. (This is not the oil they market for trucks but the 0w40 which might be marked European formula). But in any oil you buy just meet the manual spec.
i use the mobile 1 full synthetic extended performance 10w 30 in my excursion v10. they say its guarenteed for 15000 miles. i also use the fram oil filter that is good for 7500 miles. so at 7500, i change the filter and add 1 qt of new oil. then at 15000, i do a full oil change. the mobile 1 is @ $6.60/qt at walmart. my truck now has 95000 miles on it and have been doing it this was forever. still runs super.
i use the mobile 1 full synthetic extended performance 10w 30 in my excursion v10. they say its guarenteed for 15000 miles.
Check the Mobile 1 10w30. The specs have changed in the last year. My corvette came with 10w30 Mobile 1 and at that time the container stated met GM spec #... But now it only states "came installed in the following cars". But doesn't state it meets the spec. However when researching oils for our Mercedes custom V8 I found that the only oil Mobile 1 full synthetic that meets the spec is 0w40. The spec for mb is 229.5 and 229.51. This includes 07/08 Mercedes Diesel trucks. The xw30 MObile 1's no longer meet the spec and were taken off the manufacture approved list. Mobile 1 also states "the oil of nascar" but doesn't say the oil in that container is the oil. It might have been a 0w40 oil and not a xw30 oil. Just check your oil to confirm it is "still" the "right stuff"
Also warning on "Guaranteed for 15000 miles" might just mean they give you more oil if it proves to be defective.
Ok,, guess I am a skeptic on oils but you must check closely given the high price of oil and the frequency of companies changing their oil formulation to save a buck. Remember Mobile is no longer Mobile,, but Exxon/Mobile so things have changed.
Thanks for all the responses. From the diverse number of responses, I decided to do some further research and went to the Mobil1 website, www.mobil1.com. Using their search engine, I found the following question and answer.
Question:
Mixing Synthetic and Conventional Motor Oils
Can you ever blend synthetic oils and conventional oils? If so, what is the ratio?
Answer:
Yes, synthetic oils can be blended with conventional oils. Several companies, including ExxonMobil, market synthetic blends which are a combination of synthetic and conventional oils. In the case of ExxonMobil, the ratio of synthetic to conventional oil in these products is considered proprietary information.
My Daddy always told me not to trip over dollars looking for pennies so I decided to ask my question at this highly regarded website and its equally regarded members.
It turns out that according to Mobil oil and a few members of this site, that you can in fact mix the two oils. So, Im going pick up my $10 and mix the two lubricating fluids the next time I change my oil.
Apparently $10 doesnt mean as much to you as it does to me. So....maybe everytime I get ready to change my oil, I will purchase the synthetic oil that is commercially blended and then contact you for the extra 10 bucks. Sounds like a fine deal to me.
RetiredCDF'er: The thing is that when it comes to our Expensive trucks, Most of us rather spend that extra 10 bucks and do it right the first time and not have any problems with our motors.I spend about 100 dollars every (5k miles) oil change and I cant see myself cheaping out on oil just for 10 bucks.
I did a lot of research both here and at the various oil company websites. I won't mix them wrong; I will do it right the first time and I won't mess up my truck. I will however, save approximately $10 with each oil change.
BTW. Petroleum based oil, API rated "SM" on sale for $1.09 per quart X 5 quarts plus
2 quarts of full synthetic oil on sale at $4.99 per quart. Mix them up and get an oil change on my truck for approximately $15.50 plus the oil filter.
Again, I appreciate all the replies and words of wisdom.
Or you could go to Advance Auto Parts and get 7 quarts of 5W20 motorcraft synthetic blend for $18.76 and know that you aren't going to have any problems for the next 6 months\5000 miles.
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