V-twin is getting hard to find up here. One local distributor needs $12 per quart. Where are you finding it in bulk and approximately how much is going for?

If I wanted to change from Valvoline VR1 40w and Wix Racing Filter, what do you recommend? I have a pair of 540s that are two years old. Would like to run the oil for the season, 25 hours. Maybe the Wix filter is ok? Thanks.

I wouldn't think you would see info on that.

Most people who want custom blended oils don't want the world to know what it is. A sample of the oil and an analysis of the sample will put you into the formula though.

I would guess if you are running an Indy car and needed a "real special" tranny oil with additional anti-wear, say moly instead of the more conventional stuff and a real thin synthetic base stock you would have to go custom blending.

In the real world, I can't see any advantage. Products on todays shelves are the best they have ever been, sure you can debate the zinc levels, TBN numbers, drain intervals, etc
but when was the last time someone used a ridge reamer to remove pistons? It was common practice to stay away from an engine with 100,000 miles, now we are wearing our cars milage as a badge of honor. Sure machining and metalurgy have all become better, but so has the oil.

Custom blends, not practical fo Joe consumer in my opinon.

Just my 2 cents.

Ken

I'd use the AMSOIL Dominator 15w-50 Racing Oil. The Wix filter will be fine.

That's what " 2000 lb Gorilla Oil" can cost these days...and yes...it can be worth it.....especially in the big expensive engines like Merc's 700- 1050's..

If you can't find it...then this is "equivalent" from Amsoil and very easy to get. If you get an associate membership (cost of $10.00.. it will allow 20% off your purchases for six months".

With the 20% discount (in gallons with discount) final price is $ 8.43/qt...that's a deal.

Both V-Twin and Amsoil Motorcycle Oil have outstanding anti-rust properties...this allows storage for extended periods without fogging..incase you forget of course.

http://www.amsoil.com/storefront/mcv.aspx

We need to get an oil analysis on this newer oil...see what's in it...

That is a big price difference for the same product. What is up with Mobil 1? Meaning, why so hard to find nowadays?
.

Do you know how to tell what the shelf life is? If you bought a 30 gallon drum, how fast would you need to use it before it goes bad?
.

Mobil just "reformulated" M-1 10W-40 MX4T Motorcycle and now it's called Racing 4T.

(Reformulations can sometimes be another word for replacing a base oil that is not as costly).

It's possible that as MX4Twas reformulated...V-Twin may be next in line.

I asked that question of the owner of a "15 minute" Quaker State" oil change center. Lots of 55 gallon drums of oil ..pressure dispensing equiptment hooked up...basically a "sealed" system.

How long does the manufacturer say it's good for?

Response..

Must avoid humidity and temperature changes that might cause condensation. That being said...I was told a couple 2-3 yrs.