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Discussion Starter · #1 ·
What do you prefer Mobil1 oil or Redline and why? Im running Redline in all three holes. Thinking about trying Mobil 1. Been hearing rumors that redline may not be that good from people, and internet. Thanks Guys
 

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I'm going to be putting in Mobil 1 in the engine this weekend. I've never used Redline in the engine. I'll use nothing but Redline Heavy Shockproof in my tranny though. I'm also trying Redline MTL in the primary as per advise from someone wiser than I.

I haven't heard anything bad about either one but I can get mobil 1 anywhere for less.
 

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Discussion Starter · #3 ·
Can i ask you why if you use Redline in the primary and trans. you dont use Redline 20w50 in the engine? Just curious. Thanks
 

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Just because I can get the Mobil 1 anywhere on the road, i.e. gas stations, Walmart, etc. At least this is what I'm told and I believe it. I haven't used the Mobil yet though, I'm switching from Syn 3 this weekend. As for Primary and tranny, I never need to add to those and I let those oils go a little longer. Plus the Shockproof really works well in my tranny and MTL was recommended to me.
 

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The Big Boys Use Mobil 1

I've used Redline in the primary & the tranny but only Mobil in the engine.

Look Mobil 1 is the factory fill in ALL Porsche, Corvettes & Mercedes and they know a hell of lot more about engine technology that we do.
 

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I recently THRASHED through all the thousands of posts on this forum and other Harley related forums and came to these conclusions: (my opinion only!!)

1) Use oils and gear lubes manufactured for motorcycle (V-Twin) use only.
2) Stick with a well known (positive feedback) manufacturer. I narrowed this to Mobil 1, Redline, and Amsoil for my Harley.
3) Change your fluids as often as possible. If you think about it, this is a REAL CHEAP wasy to maintain good engine health! I plan to change crankcase every 3K miles and the primary and tranny every 5K.
4) My final conclusion (MOST IMPORTANT) was that EVERYONE has an opinion on oils and it does no good to argue with them. Do a little investigation, then just go with your gut feel...it will be right no matter what anyone else says!!!

After all my research, I currently have the following fluids in my Harley:
* Crankcase - Mobile 1 V-Twin 20W50
* Primary - Redline MTL
* Transmission - Amsoil Severe? 75W90

Not sure where I will be for the next round of changes.....:dunno:

Good luck!
 

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2005 Road King Classic
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My great grand daddy used to use natural white rubber tires on his Harley and only had a few blow-outs a week. Then for his oil if it was slippery he would use it. Said all that fancy chemistry talk was just that. Fancy talk. That was his gut feeling.
 

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Mobil, Amsoil, Redline - all great oils! But you need to go to 3 different sources to get them all and possibly a 4th depending on what filter you're using? Too inconvenient for me.
 

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SFTL-1 said:
Mobil, Amsoil, Redline - all great oils! But you need to go to 3 different sources to get them all and possibly a 4th depending on what filter you're using? Too inconvenient for me.
Actually, the only reason that I have different manufacturer's products is that I searched around the Charlotte area for suppliers. SO I bought some of each. My next change will most likely be using one or two (at most) types.%[email protected]
 

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I went with all Redline Oils and a K&N Performance Gold filter. Found all products at Summit Racing. One-stop shopping and great prices.
 

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Oil discussions are like discussing religion, maybe worse. I also have researched numerouse HD forums and oil related forums and have come to the following opinions.

1. Use the correct grade and viscosity that is recommended and change it at the recommended intervals. ANY brand that fits the criteria is acceptable ie. car oil, diesel oil, v-twin specific oil and even Amsoil will work.
2. MC specific oil is not required unless you like to pay extra money for oil. HD recommends that you use diesel rated oil in a pinch and they designed and made the bike.
3. Changing the oil more frequently than recommended is a waste of time and money. Oils are better than they used to be and changing them more often (especially synthetic oil) is only helping the oil companies not your engine. A recent study even came to the conclusion that changing your oil too often is as bad as running it too long. Let me ask this, when was the last time you heard of an engine failure that was a result of using ANY correct grade, viscosity of oil (regardless of brand) and using the recommended oil change intervals?
4. What Sheriff said. It's your bike do what makes ya feel good.

I use:
Engine - Currently Redline 20-50 Syn but plan to try the Mobil1 car syn. Change it every 5,000 miles w/filter.
Tranny - Valvoline Dura Blend 85-140 but may try the Redline Shockproof. Change it every 20,000 miles per new recommendations. OK, I may only go 10,000 and change it with the primary.
Primary - Redline MTL. Change it every 10,000 miles per new recommendations.

Any of this can change based on what I read in the future.

Good Luck
 

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Could use Amsoil's Severe Gear 75W-90 or 75W-140 in the transmission which in heavy equipment can be changed every 500,000 miles.
 
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