Recent content by Pick73

Mobil Delvac Extreme Synthetic 15W40 in Duramax LB7, and Massey Ferguson GC1725M. Delvac 1300 Synthetic Blend 15W40 in my JD 2520 and 820 1970's era tractors.

Used it for several years in my JD 2520 and 820, 1970's era tractors. Now running Delvac 1300.

I've clay barred outside glass. Works really well. Unbelievable, the crud you can get off. I use glass cleaner first, then clay bar.

When I was a teenager in the 1970's, I bought an Allis Chalmers B tractor from a neighbor. My father told me to ONLY run 30WT NON Detergent oil in it, which I did. Since we lived 35 miles from the Allis dealer, and I couldn't drive, I found a mason jar fit the threads on the oil filter mounting...

2003 GMC 2500HD Duramax 4X4, 210,453 miles,, rear differential today. Out Mobil 1 75W90, in Valvoline Full Synthetic 75W90. Drained and filled 4 quarts. I don't remember when I changed it last, maybe around 125K? But boy, I could not believe how clean the Mobil 1 looked. Almost nothing on the...

Massey Ferguson GC1725M Out: Agco 15W40 conventional diesel oil. In: Mobil Delvac Synthetic 15W40 @449.5 hours. Agco specified filter.

Why all the hate for Blackstone? I sent an oil sample in from my JD tractor, and they found antifreeze in the oil and called me on the phone as soon as they found it! Took the tractor to my mechanic and we tore it down and found cylinder liner O rings were put in backwards and antifreeze was...

I am just basing this on the fact that they went to 20 wt just for fuel economy reasons and not engine wear.

I've watched quite a few of Lake Speed's videos on the subject, and it got me wondering. Wife has a 2016 Colorado with the 2.5L 4 cyl. It specifies 5W20 on the cap. Has good oil pressure. In light of all this, I am wondering if it would be prudent to switch it over to a 5W30 oil? We intend on...

My 2003 Duramax oil life trips at around 10,500 miles, plus or minus 200 miles. Last change I did it at 6500 and 16 months. Mobil 1 Delvac 15W40 Synthetic.

13 years on the original battery???? I bought a brand new MF 1725M, and the battery lasted less than a year, and was not covered under warranty. $160 for a new one!!!!

2003 GMC Duramax Allison 1000, drained Mobil 1 full synthetic, at 204,000. (3rd change since new) Refilled with new Allison branded filter and magnet, with Transynd 668, took 7.5 quarts. Will run 100 miles, drain and refill, as per "the experts", in a video from Dave's Garage in Utah.