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I've been in a lot of engines, rebuilding and building. With most manufacturers, I recommend using exactly what's in the manual.. Except for Harley. In the PA, I like Motul 5100 (15w50). In M8s, I like Belray Mineral or Amsoil or Red line.

I have been inside probably 15 engines that were liquid Moly for most of their lives and I don't like some of the discoloration around brass, and I don't like the smell or feel of Moly.

However, I never noticed any other negative signs, wear marks, spins or burns (like I have with HD oil).. I think it is a perfectly suitable option.
 
Am I correct that the 5100 is a synthetic blend? I am interested in knowing if you have any experience with the 7100 full synthetic? Nothing like real world experience; that's why I'm asking, very valuable. (y)

I assume the 5100 has been around longer than the 7100? Or, maybe not.
 
This morning I decided to review some of the information related to engine oil. Starting at H-D it states in the Owner's Manual the preferred oil is H-D (of course) SYN-BLEND 15W50. Also, rated "Excellent" is Screamin' Eagle SYN3 Full Synthetic 20W50. Other than mentioning "proprietary additives" there is limited information available in regards to the specifics of the oil or additives.

A favorite of mine is AMSOil and they produce some V-Twin oils. Interestingly, when I enter the make and model on their site they do not have a recommendation. :(

Moving on to the next choice, Motul, their site "Oil Advisor" recommends NGEN7 15W50 4T with Ester. They have a very good spec sheet with great detail for those interested. They equally recommend 5100 15W50 4T (Tobba611's favorite with good experiences) and 7100 4T 15W50. The selling line on NGEN7 is 50% "regenerated oils".

The third choice I examined was Liqui Moly. Their site recommended two versions. Liqui Moly H-D SYNC 20W50 and 4T 20W50. They mentioned H-D is a direct replacement for H-D 62600042. This is the part number of H-D 360 20W50 oil, not SYN3. Liqui Moly also had some highly detailed specification data sheets on their oils. Neither have any mention of Ester.

Ester is a chemical reaction between alcohol and carboxylic acid that is suppose to:
1. Enhanced lubrication
2. Film strength improvement
3. Improved viscosity
4. Better thermal stability
5. Improved dispersion.

I know oil selection is a very personal choice and I thought some additional information would be helpful in making a future selection. From everything I have read and reviewed I think I will be going with Motul going forward. JMHO
 
Discussion starter · #12 ·
Well far as I know Harley will also tell you if you can’t get motorcycle oil then run 15/40 rotella it’s in the manual so what does that tell you ? I think it’s the weight that matters not the manufacture although some are sub par lol
 
Discussion starter · #16 ·
So got the oil change done will wait and see I don’t like the noise the motor makes but I suppose it’s normal I hope lol but when I checked the oil level ( Harley website) it shows 1/4” over the line at operating temps so I drained a little out and gonna leave it at that u til I can figure out exactly how much goes in it
 
Just passed 3,000 miles and time to do my 2nd oil change. The 1st was done by the H-D dealer at 1,000. Here we are all setup to start the process.
Image

I have my new FLO oil filter (PCS7B), drain plug O-ring, Motul 7100 20W-50, and not shown Blackstone Labs oil test package.

I did 3 measured drains of the oil sump. The first was with the bike at operating temp on the center stand. That produced 96 oz of old oil, the 2nd drain was placing the bike on the Jiffy stand as the Service Manual recommends. That produced additional 16 oz, the 3rd was removing the oil filter which produced an additional 8 oz for a total drain of 120 oz or 3.75 qts. (That is the amount the dealer had put into the bike at the 1,000 service.)

Time to button everything back up and refill. The FLO filter went on nicely and you can feel and see the dramatic difference between the quality of the FLO filter and the factory filter. Drain plug next and finally the oil. I took to heart the comment made earlier on fill quantity variations right out of the factory sealed bottle. I decided to measure the amount of oil in each of the Motul bottles before filling the oil sump. One bottle was 1 oz heavy from the other 4. Interesting. :unsure:

I used the recommended process of filling 3 qts of oil (96 oz), running the engine for 10 seconds and then measuring. I continued to fill until I hit the full mark, standing straight up, on the floor, and I added an additional 16 oz for a total 112 oz or 3.5 qts. I verified this with both the factory dipstick and the Pazoma dip stick. Both were right on the appropriate fill mark.

No drips or leaks. Ready for the test ride. :giggle:

I sent off the oil sample to Blackstone Labs. As soon as the results arrive I'll be happy to share those. It will become my benchmark.
 
Just passed 3,000 miles and time to do my 2nd oil change. The 1st was done by the H-D dealer at 1,000. Here we are all setup to start the process.
View attachment 8149
I have my new FLO oil filter (PCS7B), drain plug O-ring, Motul 7100 20W-50, and not shown Blackstone Labs oil test package.

I did 3 measured drains of the oil sump. The first was with the bike at operating temp on the center stand. That produced 96 oz of old oil, the 2nd drain was placing the bike on the Jiffy stand as the Service Manual recommends. That produced additional 16 oz, the 3rd was removing the oil filter which produced an additional 8 oz for a total drain of 120 oz or 3.75 qts. (That is the amount the dealer had put into the bike at the 1,000 service.)

Time to button everything back up and refill. The FLO filter went on nicely and you can feel and see the dramatic difference between the quality of the FLO filter and the factory filter. Drain plug next and finally the oil. I took to heart the comment made earlier on fill quantity variations right out of the factory sealed bottle. I decided to measure the amount of oil in each of the Motul bottles before filling the oil sump. One bottle was 1 oz heavy from the other 4. Interesting. :unsure:

I used the recommended process of filling 3 qts of oil (96 oz), running the engine for 10 seconds and then measuring. I continued to fill until I hit the full mark, standing straight up, on the floor, and I added an additional 16 oz for a total 112 oz or 3.5 qts. I verified this with both the factory dipstick and the Pazoma dip stick. Both were right on the appropriate fill mark.

No drips or leaks. Ready for the test ride. :giggle:

I sent off the oil sample to Blackstone Labs. As soon as the results arrive I'll be happy to share those. It will become my benchmark.
Excellent info! Thanks for sharing!
 
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