Recent content by Jason280

Now I wish I'd bought more! The Mazda currently has around 220k miles, and the Jeep is closer to 168k...I should have enough oil for both to last me until 2020.

Great, that's good to hear!

I picked up 4 gallons of Delo 400 XLE 10w30 diesel oil a few months ago, with plans on using it in a vehicle that has now been sold. What are the chances it could be used (effectively) in a '91 Mazda B2600I 2.6L fuel injected 4 cyl? If not the Mazda, maybe a '94 4.0l Jeep 6 cylinder?

Thanks for the information, seems like I have a few good choices to pick between. Temps here in Georgia aren't too severe, we rarely see temps much lower than 20* in the winter. As far as the mileage goes, I really don't know...I haven't driven it enough to really calculate anything. I really...

Recently picked up a '75 Jeep CJ5 with an AMC 304 V8. This is my first AMC engine, and first V8 in a Jeep. Speedometer has been changed out to a newer model, so I have no idea the mileage. Any suggestions on an engine oil and weight?

I've been told I might get a little better mileage with a tune up, but I am not real familiar with carb'd truck engines. I may check the plugs and timing, but first order is to get the oil changed. I'm debating on changing the rear end and transmission fluid as well, certainly wouldn't hurt....I...

Quote: About 5 MPG or so? Done anything to it, or stock? Its stock. Round trip each time was around 110-115 miles, and I burned around 24 gallons each trip. Half of each trip was loaded to 26-27k lbs, the other half was cruising at 11,400lbs.

Originally Posted By: Alex_V If it was mine it'd get Valvoline or Rotella 10 or 15w40 (maybe a stout 10w30 if doesn't get worked hard and seems pretty healthy and tight) with a 2 qt. filter if that isn't already the stock number. Its getting worked pretty hard, I used it three days last week...

I recently picked up a 1984 medium duty GMC 70 Topkick/Kodiak truck, with a GM 366 gas engine and 5spd manual trans with 2-spd rear end. I need to change the oil in the truck, but I have had a little difficulty finding the recommended oil and actual capacity. Any suggestions?

Quote: Your Pennzoil mineral GL5 80W90 offers higher MOFT and free of VII's. Most synthetics 75W90 comes with VII content. I appreciate the information, but I have no idea what any of that means. I went ahead and picked up 6 quarts of the Valvoline 80w-90, its GL-4 and GL-5 rated. Worst case...

Ok, now I am confused as ever. First of all, it's next to impossible to find a GL-4 rated 75w90. Valvoline offers an 80w90 that is GL-4 and GL-5 rated, and reasonably priced. Interestingly enough, the computer at Advance states that you can use GL-4 or GL-5 for the trans and transfer case.

I held off on changing the oil today, as I am still not sure what is spec'd for the transmission and transfer case. The computer at Advance calls for a GL-4 75-90w in both....but didn't carry it. I actually have several quarts of Pennzoil GL-5 80-90w, but didn't feel too comfortable pouring it...

Interesting. Would Syncromesh not be a better option for the manual transmission?

I have a '91 Mazda B2600i 4x4 with manual 5-speed that has gone neglected too long. I recently got my MaxJax 2-post lift installed, so it has motivated me to give the truck a little TLC. First thing I want to go is change out the oil in the transfer case and transmission, but I am having trouble...

I had a similar issue with a '95 Jeep Wrangler YJ, although mine was a 2.5L 4 cylinder. http://www.bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=2191690&page=1 Mine was bad enough, I'd wished I'd never pulled the valve cover. Interesting part was, there was never any...