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 3/7/2011 6:42 PM
 

Okay, here is the scenerio, I am planning a trip this spring of 7k to 7.5k miles. I have just changed the oil to Mobil 1, fully synthetic, 15k mile oil. I would like to make this trip without having to change oil in the middle. Since I am using a 15k mile top of the line oil does anyone see why I should not be able to complete this trip without changing oil until I return? As this trip is only half the expectation of the manufacturer, seems like it should be fine. Any thoughts?


Randy and Evelyn. 2002 Adventurer 35U,Triton V10. 2009 Saturn Vue. Plus Buddy the superdog.
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 3/7/2011 7:08 PM
 

Randy,

That is the beauty of synthetic. it will run the miles and you are protected. I am not a fan of mobil 1, but I have been using synthetic since the 70's.

All my cars are lubed with AMSOIL, and they all are on a 25,000 change interval. In the old days I used to have to change the filter at 12.500 and add a quart. They have advanced with their filters and now you can go the whole 25 k with the same filter. All my cars are keepers and I only sell them when they get to high mileage. I then look for a new low mileage jewel and start again.

Our motorhome has 20/w 50 AMSOIL Diesel oil, full synthetic and I run twice the interval as petroleum oil. I usually have to change at 6 K but with Synthetic I go 12 K.

Check out this 1996 Lincln Town car. Only 70,000 original miles, and it's filled with AMSOIL synthetic, including synthetic ATF transmission fluid.

With Synthetic you can go on our trip and forget the worry of a few miles over the limit


Big Bad John & Runaround Sue & Paris *Hammock,Florida* *97 Dutch Star Diesel* *76 VW Bay Window Bus* *91 Classic Harley Davidson* *1949 Ford Lead Sled* *2012 HD LSV
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 3/8/2011 8:14 AM
 
Randy, didn't see any mention of what type of engine you have. I am assuming this is a gas engine. If so my only concern would be warranty. If your rig is still covered by the engine warranty, I'd check with the manufacturer to see their take on oil change intervals with synthetics.
My Cummins diesel requires an oil change every 12 month or 15k miles so I change mine once a year. I don't run synthetic oil in the rig but i do have synthetic tranny fluid. My change interval with that popped out to 48k miles or four years by switching to synthetic fluid and the tranny runs cooler.

Libby and John and RV the CAT Ford F 150 towing a 2017 Forest River Vibe 277 RLS Click here to see our current location
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 3/8/2011 5:15 PM
 

John, Sorry, you're right, not enough information. I am driving a 2002 Adventurer 35U with the Triton V10, so it is well out of warrenty.


Randy and Evelyn. 2002 Adventurer 35U,Triton V10. 2009 Saturn Vue. Plus Buddy the superdog.
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 3/9/2011 8:53 AM
 

If you are using synthetic's warranty is not an issue.

www.synthetic-motor-oil-change-and-fi...

Happy motoring.


Big Bad John & Runaround Sue & Paris *Hammock,Florida* *97 Dutch Star Diesel* *76 VW Bay Window Bus* *91 Classic Harley Davidson* *1949 Ford Lead Sled* *2012 HD LSV
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 3/9/2011 5:30 PM
 
 Modified By RVA  on 3/9/2011 5:32:21 PM

Randy - I think most would agree that synthetic oil is superior to dino oil, but there is a risk changing to synthetic on an older engine with lots of miles. I wanted to change my genset and engine oil to synthetic, starting with the genset. The next morning I noticed drops of oil beneath the genset, so I wiped everything clean and made sure everything was tight. Next morning, more leakage. I called Mobil 1 and learned that what I was experiencing wasn't unusual, because synthetic oil has smaller molecules and can seep through tiny cracks in the gaskets that dino oil can't. They suggested I try a blend (50% synthetic, 50% dino), but that didn't eliminate the leak. I switched back to dino and haven't lost a drop since. Hopefully, you won't have any problems, but if you notice leakage at least you'll know the problem and the cure. Good luck. - Dave

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 3/9/2011 9:21 PM
 
 Modified By johnchurn  on 3/9/2011 9:23:00 PM

Dave,

You are correct. When you have been doing something for a long time, you forget the details. Synthetic is for lower mileage engines. Most people who are brave enough to use synthetic usually study the facts and are not disappointed with the results.

It has been my experience that engines under 60 k will usually make the change. As you experienced, if it doesn't work you can always go back.

We started using synthetic in the early 70's and have always been very satisfied. We tend to hang on to our vehicles and only sell them when they are high mileage and look for a new low mileage candidate. So far we have never had an issue with wear on the engine.


Big Bad John & Runaround Sue & Paris *Hammock,Florida* *97 Dutch Star Diesel* *76 VW Bay Window Bus* *91 Classic Harley Davidson* *1949 Ford Lead Sled* *2012 HD LSV
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 3/12/2011 7:49 PM
 

Randy, are you going somewhere that doesn't have a single shop to change oil? No way would I change to a synthetic at your mileage just to avoid an oil change on a trip......


Bob J. from TX 2014 Newmar Essex 4544 2007 Lexus LX 470 Toad
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 8/9/2014 9:36 AM
 
 Modified By udidwht  on 8/9/2014 8:37:24 AM

Synthetic oils while better with respect to handiling heat than dyno they still need to be changed due to the additive packages in them. These additives are identical ingredients added to their counter parts (dyno oils). The whole point for oil changes isn't because of the oil breaking down it's the addititives that break down which lead to build up of contaminants.

There are no free lunches.

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