Search results

Thanks George! Dan, Great post!

George, I've been using (all M1) Vtwin in the Engine, 75-90 in the tranny and 10-40 4cyl Oil in the Primary. Should I switch to all 20-50?

Results from my 99 GMC 6.0 liter ¾ ton Pickup. Oil is Delvac 1 5W40. I ran Delvac 1 for 3K and then changed it prior to starting this run. First Column is 50K on the engine, 3400 miles on the oil. I pulled a sample, changed the filter and then added ½ quart to top it off. I then took off on...

Where? I don't see it. Disregard! Found a link in the article "Why Harley Owners Chose Amsoil" [ June 03, 2003, 06:19 PM: Message edited by: Professor ]

I ran it for about 15years-230K miles in my 6.2 diesel. I recently changed over to Delvac1, but only to increase the change intervals.

JonS The reason I have heard is the spread of 25-50 is less than the more common 20-50. With the shear they are worried about the additives and modifiers breaking down and loosing the ability to act as a 50 weight oil at high temps. I can somewhat understand their concerns with dino. Most have...

Terry, I can’t commit on any shoe time. I kind of went from tuner/crew chief to mud scrapper over the last few years. I actully play with the weather station and do a bit more. Just a whole lot less than I used too. I’m not sure about the formula, someone else was ordering it and paying the...

I’m a newbie to this forum. I’ve been lurking for a bit and decided to toss in a question. First, I’ll throw in a bit of an intro: I’m not new to synthetics and have a bit of knowledge about lubricating oils. I have used synthetics since 93 on a GM 350. It is gone after 150K miles of faithful...