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  #16  
Old 03-04-2011, 09:42 PM
Twisty Twisty is offline
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Default Re: Synthetic oil vs Regular oil

I've been driving for about 30 years. I've owned 14 cars/trucks. I've driven my Dad's Cummins diesel/Allison 4x4 dually truck.
I had a 1971 Chev Blazer 4x4 with a 402 Rat engine that exceeded 400 hp and 600 foot pounds of torque. Have you ever seen a full size Blazer with the front tires off the street?That kind of power was not in my head.
I did not make an outrageous claim about massive gains in in performance.
I apologize that I cannot document my mileage gain. I simply checked a few tanks of fuel consumption during normal driving conditions.
If you refuse to believe and refuse to try the products, well...
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  #17  
Old 03-04-2011, 10:12 PM
FireRanger FireRanger is offline
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Default Re: Synthetic oil vs Regular oil

Quote:
Originally Posted by Twisty View Post
I've been driving for about 30 years. I've owned 14 cars/trucks. I've driven my Dad's Cummins diesel/Allison 4x4 dually truck.
I had a 1971 Chev Blazer 4x4 with a 402 Rat engine that exceeded 400 hp and 600 foot pounds of torque. Have you ever seen a full size Blazer with the front tires off the street?
What's your point? None of that pointless bragging has anything to do with any of this.

Quote:
Originally Posted by Twisty View Post
That kind of power was not in my head.
and it wasn't in your oil either.

Quote:
Originally Posted by Twisty View Post
I did not make an outrageous claim about massive gains in in performance.
Yes you did. You claimed switching to synthetic oil will add up to 10hp. That is a massive gain. And such a claim is wildly outrageous.

Quote:
Originally Posted by Twisty View Post
If you refuse to believe and refuse to try the products, well...
I've been using synthetic oil for 10 years. I don't refuse to believe, I'm just not a sucker. well, what?
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  #18  
Old 03-05-2011, 04:21 AM
Rango88 Rango88 is offline
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Default Re: Synthetic oil vs Regular oil

Quote:
Originally Posted by mickblock View Post
Your owners manual will have this info if this engine requires a break in period.
Lazy-ass answer I know. I can't remember how long I waited.

I wonder if synthetic oil burns like regular oil? Before the piston rings are seated fully an engine will burn a bit of oil. Maybe that's what the whole don't use synthetic before break in is all about?
Lol i read the owners manual the first day i got the truck, break in period is 1600 KMS or 1000 Miles and no towing for 1000 KMs, So as long as this break in period is completed I should be fine, Just want to make sure since this truck is a longterm at least 300K Kms investement (I hope)

----------

Quote:
Originally Posted by DHEM View Post
I do know for a fact synthetic oil works better for a broader ranger of temperatures, and that synthetic oil is a thinner oil. In some cases you will see a slight increase in power just by using the thinner synthetic oil, up to 10hp usually. Most engines now require synthetic oil, like the Chrysler 2.7 v6, running conventional oil in that will destroy it.
I do believe that the Chrysler 2.7 V6 will destroy itself in little time no matter what oil you use
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  #19  
Old 03-05-2011, 09:30 AM
Rangerinpa Rangerinpa is offline
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Default Re: Synthetic oil vs Regular oil

Other than Financial, I see no reason whatsoever not to run modern Synthetics.

They are by Far the pinnacle of lubrication technology.

Just pick your favourite brand, And enjoy Longer OCI's, Less Sludge and better MPG.

Facts? I dont have any to show you, except My Engines look great under the valvecovers and MPG. (except for the 4.0. but then I never expected it to do well)
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  #20  
Old 03-05-2011, 09:49 AM
jack7481 jack7481 is offline
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Default Re: Synthetic oil vs Regular oil

bullshit! older trucks wont leak if you use syn oil.
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  #21  
Old 03-05-2011, 12:26 PM
DHEM DHEM is offline
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Default Re: Synthetic oil vs Regular oil

Quote:
Originally Posted by FireRanger View Post
Again I would love to see someone actually show a shred of evidence of this. 10hp is a HUGE MASSIVE increase in power. You can't pour 10hp into an engine. I don't contest that it is a better product than old school dino oil. But these claims of massive gains in performance are ludicrous. Unless you were using elmers glue for lubrication before...
http://www.carcraft.com/techarticles...oil/index.html

http://www.buzzle.com/articles/synth...ional-oil.html
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  #22  
Old 03-05-2011, 06:03 PM
jetmex jetmex is offline
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Default Re: Synthetic oil vs Regular oil

I have to agree with FireRanger on this point - you aren't going to get 10hp just by switching to synthetic oil. The best way to get 10hp is to spend lots of money....

Newer engines come filled with synthetic from the factory, so the break in should not be a factor there. Older engines that predate synthetic will probably benefit from break in with dino oil before you switch to synthetic. This is to allow the piston rings to seat in the cylinders, which will take longer with a synthetic. I've read pros and cons on both. I broke my 3.0 in on dino oil, then switched at about 3500 miles to synthetic and have had no problems.

As far as leaks on high mileage engines after switching - I tend to agree with that. We run synthetic in all of our jet engines, and if they're not tight, that oil will find every little void and leak all over the place.

The biggest mistake everyone makes with synthetic is changing it every 3000 miles. The stuff doesn't break down nearly as fast as dino oil and lubricates quite a bit better, so if you change it frequently, you're throwing away a lot of good money. AmsOil warrants theirs for 25,000 miles. That's a little further than I'm comfortable with, so I change it every 10,000 miles with a fresh filter and top off at 5,000 miles. Do it that way and it costs you about the same as normal interval changes with dino oil. And just for gee whiz info - we don't change the synthetic in our jets at all during normal service. Just top off as needed and change the filters now and again.

There are lots of good articles on this subject, so do a google and some reading and there's no telling what you'll find out...
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  #23  
Old 03-05-2011, 06:28 PM
sgtsandman sgtsandman is offline
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Default Re: Synthetic oil vs Regular oil

Quote:
Originally Posted by Magnus View Post
Wich one do you guys perfer Synthetic oil or regular oil?

Is it true you see better fuel economy when you use synthetic oil and it also cleans the engine better than regular oil. And then the old tale appears once u run synthetic you cannot go back to regular oil. Reason why I ask is my Ranger is due for an oil change here soon and I am thinking about using synthetic. If so whats a good brand to use and a brand to stay away from. I am thinking about using Ams Oil
I prefer synthetic. Fuel economy would be slightly better but not enough to really notice. At least not unless you go synthetic with everything (tranny, differential, etc.). With just the engine, you might see 1 mpg, maybe. It will hold up better and keep your engine cleaner, even if you go with whatever synthetic that is on sale. It just depends on what you want to spend and what your goal(s) are.
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  #24  
Old 03-05-2011, 09:09 PM
chaosratt chaosratt is offline
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Default Re: Synthetic oil vs Regular oil

So, are there any big tips for switching over a 9 year old engine with 115k miles? Can I just switch to a full synth on the next change, or do I need to blend it in over a change or two? Any recommendations on brand? I use Shell Rotella in my bike, somehow doubt that would work in the 'ol Ford.

I ran my bike with dino oil for 1,500 miles (per manual and dealer instructions to complete break in) then switched to the JASO approved Shell Rotalla full synth ever since (has ~16k now, 3 years later). My truck is the first non "metric" vehicle I've owned that I personally paid for (all previous cars were "hand-me-downs" when family members upgraded, I paid for them, but far less then they were worth), and I'd like to take good care of it.
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  #25  
Old 03-06-2011, 05:27 AM
sgtsandman sgtsandman is offline
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Default Re: Synthetic oil vs Regular oil

No, the swell properties of today's synthetics are similar or the same as petroleum oils and today's gaskets and seals are much better than the old cork ones used in the past. You can switch back and forth to your heart's content.

The only time I've heard that you don't want to go synthetic is during the initial break in period of the vehicle, you could run into problems with valves and so forth not seating properly because they can't wear the way they are supposed to.
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  #26  
Old 03-06-2011, 11:11 AM
bcghosttowns bcghosttowns is offline
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Default Re: Synthetic oil vs Regular oil

I am about to switch over ,i have run synthetic before on most of my vehicals and noticed minor gains.The reason i do it is for the protection of the motor.I change it every 5000 kms or so and that way if i am late its no big deal.But also most people pop in syn oil and use the same filter and think they can magically go forever on the oil not realizing the filter is still the same and is plugged at 6000 km.
Does anyone have a solution for this?
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  #27  
Old 03-06-2011, 11:16 AM
Twisty Twisty is offline
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Default Re: Synthetic oil vs Regular oil

A solution for not changing the filter?
What r u asking?
I change the filter at every oil change. Hell, I change my remote tranny filter twice a year!
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  #28  
Old 03-06-2011, 11:26 AM
bcghosttowns bcghosttowns is offline
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Default Re: Synthetic oil vs Regular oil

I was thinking about changing the filter every 5000k and oil every 7500. the filter doesnt last as long as the oil.What does eveyone else do?
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  #29  
Old 03-06-2011, 11:28 AM
Rango88 Rango88 is offline
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Default Re: Synthetic oil vs Regular oil

Quote:
Originally Posted by bcghosttowns View Post
I was thinking about changing the filter every 5000k and oil every 7500. the filter doesnt last as long as the oil.What does eveyone else do?
oil and filter at approx 3,000 to 4,000 kms, mix castrol syntec and lucas oil additive. I check my oil weekly and monitor how quickly I need to do an oil change

Last edited by Rango88; 03-06-2011 at 11:38 AM.
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  #30  
Old 03-06-2011, 11:36 AM
mickblock mickblock is offline
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Default Re: Synthetic oil vs Regular oil

I group my maintenance items. My garage isn't set up to whip everything up at hand just to do one thing. If I'm a little late or a little early on this or that - fine. Just so it gets done.
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