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Discussion Starter · #1 ·
My oil "stash" is all used up, and I went out to get more.

Woof.

Has anyone looked at the price of oil and filters and such lately ?

.... and the guy at the counter basically told me I'd be stupid not to use Harley's heavy gear oil .vs Formula+
 

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I use Lucas Synthetic, 20W50, 3 in the engine, 1 in the Primary. Lucas Synthetic Gear Lube in the Trans. Its all around $10 A Quart locally. I use the Hi Flo Filter (they make them for K&N) it has the Nut welded on for easy removal. The Filter is $9.32 on Amazon, 171C.
 

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1986 FXRC # 3/1250 Original Owner
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610 Posts
Lucas is $11.50 on Amazon not available locally. The filter is $9.32 also on Amazon. That would be around $40 cheaper for 6 quarts and a filter. Might have to try that. Now to find drain plug o rings by the bag I'm sure there out there I just never looked.
 

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2014 FLHR
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81 Posts
.... and the guy at the counter basically told me I'd be stupid not to use Harley's heavy gear oil .vs Formula+
My 14 RK has been using formula + in primary and trans since it was new and has 45k on the odo.
No problems so far and I like how the clutch feels using the formula +.

The engine runs synthetic so I get lucas motorcycle oil or mobile 1 vtwin, which ever is on sale.

Napa auto sells k&n oil filters. (maybe a little cheaper than dealer?)
 

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2004 FLSTCI, 1993 FXDL
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1,613 Posts
I try not to pay the dealer prices for something I can get elsewhere that's just as good. K&N Filters and Redline from Amazon as mentioned and Mobil One when it's on sale at the Auto Parts store. If you buy enough from Autozone you eventually earn $20 and that helps a lot. Ace Hardware has O Rings that are the same size too.
 

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1986 FXRC # 3/1250 Original Owner
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610 Posts
Here are bulk O-Rings.
And on a side note I was told by a dealer owner the twin cam engine oil drain plug ring is the same size as the bottom fuel line quick connect o ring
 

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Discussion Starter · #9 ·
It's $29 for that Mobil 1 15W-50 synthetic, in a five quart jug.
Does anyone use that oil ?

For years, I used Rotella conventional 15W-40 in the primary, and a generic 80W-90 gear oil in the transmission. I'm probably going to get struck by lightning or something.
 

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i got a good idea!!...dont change em!:devilish:........but yeah you fall into ...get the best name(really?) stuff and payyyyy...i use dirtbag dino rotella(cheap$) in my eng...been working well but may try syn in my trans to spin faster:rolleyes:
 

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1986 FXRC # 3/1250 Original Owner
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610 Posts
Well I searched for were Lucas is made and If he produces anything overseas it's kept secret. He states all of his product are made in the USA. I might add that Lucas is a private company, not some publicly traded corporation.
Forest Lucas has an interesting rags to riches backstory also. He sponsors all kinds of motorsports.
 

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About the only thing I buy from the stealer is spark plugs.
Wont use HD oils, not tested and everything is better.
I use HP4 racing Syn. It cost 10 bucks a quart.
Belray trans oil, 14 bucks, Belray Primary oil, 16 bucks.
Never forget the K&N filters, but then I bought a case of them.
 

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Discussion Starter · #15 ·
My Moto Guzzi specs AGIP Rotra MP 75W-90 for the transmission and rear shaft drive. It's impossible to find, but Mobil Delvac 1 Synthetic 75W-90 is a virtual match in all the spec sheets, and they both have the MT-1 (manual transmission) rating with a seal conditioner.

There's a gallon sitting here on the shelf. It appears to work well in that Moto Guzzi, and I'm temped to try it in the Harley transmission.
 

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I have been using Mobil 1, 15 w 50 for quite a while with no apparent problems. I am near 120k and started using it at around 50 or 60k. I am going to switch to ZMax V-Twin 20w50 at my next change to support one of our Sons of Speed Sponsors. Wix, NAPA, or Toyota filters.
 
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