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Is there a best time to switch to synthetic oil? #5440951 05/28/20 12:37 PM
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Jgelack Offline OP
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Is there a best time to switch to synthetic oil? I've heard that you can use it in a brand new bike from day one. I've also heard wait until 4000 miles or so, until the engine is "fully" broken in before switching to synthetic, and everything in between! I tend to believe that you can use it from day one, since several bike/car manufacturers use it as their factory fill, and other than the ring/cylinder seal, today's engines don't need thousands of miles to break in, like they used to in the past. Am I correct?

Re: Is there a best time to switch to synthetic oil? [Re: Jgelack] #5440953 05/28/20 12:39 PM
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JohnnyJohnson Offline
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I would change it to synthetic when I replaced the factory fill.


2004 Corolla 140560
Out: Pennzoil Platinum HM 5W-20 ST 4386
In: Valvoline Synpower Full Synthetic 5W-30 Purolator PureONE
2006 Duramax 77117
Out: T6 5W-40 XG9100 73909
In: Rotella Dino PH9100 11-3-19
Re: Is there a best time to switch to synthetic oil? [Re: Jgelack] #5440954 05/28/20 12:40 PM
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JeffKeryk Offline
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Now, because Costco has it for about $24 for 2 5 quart jugs.


2018 Tesla Model 3, Medium Range Battery
2018 Lexus RX450h
2013 Lexus GS350 F Sport
2006 Acura TSX
2001 Tundra Access Cab, 1998 Accord LX, 1968 Corvette L36 Roadster, 1965 Olds 4-4-2
Re: Is there a best time to switch to synthetic oil? [Re: JohnnyJohnson] #5440963 05/28/20 12:46 PM
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Originally Posted by JohnnyJohnson
I would change it to synthetic when I replaced the factory fill.

X2

Re: Is there a best time to switch to synthetic oil? [Re: Jgelack] #5440979 05/28/20 01:04 PM
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CT8 Offline
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Any time you want to change I always read i have herd can run syn oil in a brand new engine at the first start up.


2015 F150 2.7
2018 F350 6.2
Re: Is there a best time to switch to synthetic oil? [Re: Jgelack] #5440999 05/28/20 01:36 PM
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sloinker Offline
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If you are talking off the shelf from Walmart synthetic, you can change it anytime you feel like. A couple of the boutique synthetics instruct you to wait from 1-3k miles to start using their product. They are worried about ring seal. Of course those are real synthetic oils.


'16 Tiguan TSI Vaico 5W40
'15 VW Golf TDI Red Line 5W30 Euro
'15 VW Golf Sportwagen TDI M1 ESP 5W30
'14 Dodge Grand Caravan 3.6 Valvoline 5W20 Semi Synthetic
'64 Plymouth Fury440 Pending
Re: Is there a best time to switch to synthetic oil? [Re: sloinker] #5441013 05/28/20 01:52 PM
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Jgelack Offline OP
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Originally Posted by sloinker
If you are talking off the shelf from Walmart synthetic, you can change it anytime you feel like. A couple of the boutique synthetics instruct you to wait from 1-3k miles to start using their product. They are worried about ring seal. Of course those are real synthetic oils.

Which brands suggest waiting that long to use their product?

Re: Is there a best time to switch to synthetic oil? [Re: Jgelack] #5441025 05/28/20 02:02 PM
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sloinker Offline
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Originally Posted by Jgelack
Originally Posted by sloinker
If you are talking off the shelf from Walmart synthetic, you can change it anytime you feel like. A couple of the boutique synthetics instruct you to wait from 1-3k miles to start using their product. They are worried about ring seal. Of course those are real synthetic oils.

Which brands suggest waiting that long to use their product?


Red Line, Bel Ray, Miller's among others last time I checked. I would tend to stay away from an oil that has higher, >15%, ester content until you know you have good ring seal. Why tempt fate.

Q: CAN I BREAK-IN MY ENGINE ON RED LINE MOTOR OIL?
For performance engines, we recommend using conventional 10w30 motor oil to ensure proper piston ring seating. We recommend using this oil in combination with our Engine Oil Break In Additive, which features the antiwear chemicals necessary to protect valve train components like camshafts, rollers and tappets. Though most conventional oils are missing the important antiwear components that you find in Red Line's synthetic motor oils, the conventional oil is not as slick as Red Line and will allow the piston rings to seat more quickly. If you allow 1500 to 2000 miles in a street engine or 20 to 30 minutes on the dyno at low rpm, the rings will have had sufficient time to seat and the high initial break-in wear will have occurred. For new road cars, always follow the manufacturer recommendations and initial oil change recommendations for break-in.

Last edited by sloinker; 05/28/20 02:13 PM. Reason: Slipped in Mopar juice.

'16 Tiguan TSI Vaico 5W40
'15 VW Golf TDI Red Line 5W30 Euro
'15 VW Golf Sportwagen TDI M1 ESP 5W30
'14 Dodge Grand Caravan 3.6 Valvoline 5W20 Semi Synthetic
'64 Plymouth Fury440 Pending
Re: Is there a best time to switch to synthetic oil? [Re: Jgelack] #5441034 05/28/20 02:12 PM
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twouvakind Offline
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During a killer sale with no mail in rebate.


Just put the friggin' Maxlife in and be done with it!
Re: Is there a best time to switch to synthetic oil? [Re: Jgelack] #5441065 05/28/20 03:09 PM
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ZZman Offline
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Many cars come from factory with Syn oil. So anytime is fine.


2005 Toyota Avalon XLS 3.5 motor
2014 Ford Fusion 2.5 motor
Re: Is there a best time to switch to synthetic oil? [Re: Jgelack] #5441068 05/28/20 03:13 PM
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ZeeOSix Offline
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Originally Posted by Jgelack
Is there a best time to switch to synthetic oil? I've heard that you can use it in a brand new bike from day one. I've also heard wait until 4000 miles or so, until the engine is "fully" broken in before switching to synthetic, and everything in between! I tend to believe that you can use it from day one, since several bike/car manufacturers use it as their factory fill, and other than the ring/cylinder seal, today's engines don't need thousands of miles to break in, like they used to in the past. Am I correct?


I like to put about 2000 miles on with non-synthetic, so it's the 2nd oil change when I go to full synthetic. Break-in OC #1 at 600 miles with non synthetic, then OC #2 at 2000 miles with full synthetic.

Re: Is there a best time to switch to synthetic oil? [Re: Jgelack] #5441071 05/28/20 03:18 PM
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Regardless of age, I'd recommend changing to syn during the following OCI.


06 Lexus IS350- Wife
88 BMW 325is- Mistress
Say "no" to Turbo!
Re: Is there a best time to switch to synthetic oil? [Re: Jgelack] #5441079 05/28/20 03:31 PM
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buck91 Offline
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I had a very old bike that developed quite a bit of leaking gaskets after switching my M1 bike oil. Haven't experienced that any other time, though.


2018 F150 Screw 4x4 2.7L Ecoboost
2011 F150 Scab 4x4 5.0L
1996 Mustang GT 5spd/ragtop
Re: Is there a best time to switch to synthetic oil? [Re: sloinker] #5441087 05/28/20 03:40 PM
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Jgelack Offline OP
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Originally Posted by sloinker
Originally Posted by Jgelack
Originally Posted by sloinker
If you are talking off the shelf from Walmart synthetic, you can change it anytime you feel like. A couple of the boutique synthetics instruct you to wait from 1-3k miles to start using their product. They are worried about ring seal. Of course those are real synthetic oils.

Which brands suggest waiting that long to use their product?


Red Line, Bel Ray, Miller's among others last time I checked. I would tend to stay away from an oil that has higher, >15%, ester content until you know you have good ring seal. Why tempt fate.

Q: CAN I BREAK-IN MY ENGINE ON RED LINE MOTOR OIL?
For performance engines, we recommend using conventional 10w30 motor oil to ensure proper piston ring seating. We recommend using this oil in combination with our Engine Oil Break In Additive, which features the antiwear chemicals necessary to protect valve train components like camshafts, rollers and tappets. Though most conventional oils are missing the important antiwear components that you find in Red Line's synthetic motor oils, the conventional oil is not as slick as Red Line and will allow the piston rings to seat more quickly. If you allow 1500 to 2000 miles in a street engine or 20 to 30 minutes on the dyno at low rpm, the rings will have had sufficient time to seat and the high initial break-in wear will have occurred. For new road cars, always follow the manufacturer recommendations and initial oil change recommendations for break-in.

Originally Posted by sloinker
Originally Posted by Jgelack
Originally Posted by sloinker
If you are talking off the shelf from Walmart synthetic, you can change it anytime you feel like. A couple of the boutique synthetics instruct you to wait from 1-3k miles to start using their product. They are worried about ring seal. Of course those are real synthetic oils.

Which brands suggest waiting that long to use their product?


Red Line, Bel Ray, Miller's among others last time I checked. I would tend to stay away from an oil that has higher, >15%, ester content until you know you have good ring seal. Why tempt fate.

Q: CAN I BREAK-IN MY ENGINE ON RED LINE MOTOR OIL?
For performance engines, we recommend using conventional 10w30 motor oil to ensure proper piston ring seating. We recommend using this oil in combination with our Engine Oil Break In Additive, which features the antiwear chemicals necessary to protect valve train components like camshafts, rollers and tappets. Though most conventional oils are missing the important antiwear components that you find in Red Line's synthetic motor oils, the conventional oil is not as slick as Red Line and will allow the piston rings to seat more quickly. If you allow 1500 to 2000 miles in a street engine or 20 to 30 minutes on the dyno at low rpm, the rings will have had sufficient time to seat and the high initial break-in wear will have occurred. For new road cars, always follow the manufacturer recommendations and initial oil change recommendations for break-in.

Thanks for that information!

Re: Is there a best time to switch to synthetic oil? [Re: Jgelack] #5441354 05/28/20 09:24 PM
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Bonz Offline
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It doesn't take long to get rings seated, you come back from your first ride a running it up the RPM scale and down the RPM scale and they've pretty much done what they're going to do. For that matter if the bike is "new" from the dealer, if it has gone on any test rides you know it's already been run hard. Even with 10 miles on it. Chances are if you have ever taken a bike on a test ride you have done that. Keep in mind if it's a brand new engine, it isn't just the pistons and rings and cylinder walls that are breaking in, gears are breaking in, the valve train is breaking in and everything in between is breaking in.

But with respect to the thing we think of most that would be the piston rings mating to the cylinder walls.

The key is to keep them under load whether acceleration or deceleration. That expands them out against the cylinder walls and pulls oil up under deceleration which is greatly appreciated by the rings and cylinder walls in the initial miles. I would run a conventional oil or factory fill because the first OCI will be short. After that switch to whatever you want.

Not sure if you are going to be breaking in an engine, but that is my regimen when I've installed pistons and rings and it's trouble free.


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