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You could doubt me, and you should! I always question. STLE had a presentation on this, their field testing showed the Audi and BMW engines with little to no deposits by using an oil that reduced the fuel dilution in the crank case. It's well proven poor ring seal and valve guide film is the...

Mobil 1 in the past had a different formula, Mobil 1 works in some vehicles. Every vehicle runs differently, so use UOA to confirm. If your engine is in tune then a cheaper oil might be just all that is needed. Today new engines run hot to reduce emissions, fuel dilution is very high, all time...

oh boy! That must have been nuts!

Nice, I like the four wheel drive sports cars, those things are always fun in winter. I have a friend that puts winter tires on his and it drives like it's on rails in winter. Yeah that's the per quart price when you break down the gallon! lol

Thanks MustangGuy! Yep, I'm going to run the Amsoil 0W-20 SigSeries in my engine in winter! The RLI should be cheaper alas the shipping brings it to $9/quart. Really a shame, I spoke with the owners and they just don't understand marketing/business in my eyes. That oil would be everywhere...

Poor ring seal in the combustion chamber and weak film strength on the valve guides is what is causing the deposits on the valves. It's been proved already that a quality oil capable of stopping the fuel dilution in the crankcase in conjunction with a quality fuel or fuel with extra additives...

Never tested their oil. Those guys and Penn Grade are on my list here pretty soon. Grabber, how much is an intake cleaning at the dealer? $500? I once had a BMW guy tell me the RLI was too expensive but then he went on to tell me how he goes to the dealer for a walnut blast every 30,000...

Sold the mustang! I have a few cars (new & old). On my RC F, which I floor daily many times over, I've been running the BioSyn HDMO Low Ash with a WIX XP filter and E15 gasahol and new air filters every 10K. I do 50,000 miles a year, so I see results pretty quickly. Yes, these modern engines...

While I definitely respect your certification, I have found the opposite. I've done many dyno runs back to back in climate controlled facilities with all variables controlled, oil is not oil. I've done more UOA than I can remember and there is a noticeable difference. A higher quality oil will...

lol, I think everyone in some fundamental aspect is a salesman, myself included. If you have a quality product or service, it's really not so much a sale but rather helping someone else. At least in my view point. He seemed nice and I liked him, we didn't get to speak much but I'll let the...

I did, and I'm waiting on results back from an engine soon. I'm always hoping I'll stumble onto something new that works well. On a side note. I'm on two other forums every once in a while and I'll get questions, etc. It always baffles me how people will buy $1,000 brake pads and $2,500 paint...

Switching back and forth between oils isn't the greatest idea. As for this engine, if I had to choose an off the shelf oil from AutoZone, I'd run the Mobil 1 Extended Performance and skip the Castrol. In regards to Blackstone, they are highly inaccurate and seriously misguide people. I've...

http://renewablelube.com/store/index.php?route=product/product&product_id=221&search=5W30&description=true

you want to run the HDMO not the PCMO, I'd go off what Terry says, not so much RLI. But hopefully you can jump on the RLI bandwagon too!

He would be the guy, after all he validated the performance, and he is the one that taught me 75% of everything I know. Unfortunately we no longer talk, but I would have nothing bad to say about him. I don't think that oil can hold up for a year though, but I have no data to back that, only a...

Wait, you do UOA with Terry Dyson and you haven't heard of BioSyn? They make it in everything from a 0W20 to a 40 weight. I run their 5W30 and you can see from my one track day it didn't even budge. I think I replied to wrong e-mail, I'll wait until tomorrow. I don't honestly know, as I...

I will have this week or the next test results on a dyno of Valvoline, M1EP, BioSyn, Amsoil SS, Pennzoil UP. I really wanted to see what different oils did to power.

He is good. I assume you have plenty of UOA from Testoil?

http://renewablelube.com/store/index.php?route=product/product&product_id=181&search=5W40&description=true Low ash is what you want if you have cats/aftertreatment units. No cats and the first one you linked is good. I promise you this base stock is unlike anything. I'm trying to work...

Fourier Transforming Infrared Spectroscopy. Not saying that's Amsoil sheer rate, but just saying you have to take BN with a grain of salt. You have to look at the sheer rates in highly abused engines. Amsoil is good nothing wrong with it. The R8's that validated BioSyn over SigSeries were...