Recent content by Thursday

I’m running RP again this interval and will test it again. It does seem oddly low in several areas.

My 2021 Ram 1500 5.7 has about 16k miles on it. The first test referenced was Pennzoil Ultra 5w20. The second was amsoil xl 5w20. And the third one was this latest test with Royal Purple 5w20 which seems to be lacking. Mainly moly and boron. All three tests had similar miles; 2.5-3k. The copper...

That’s a good perspective and point. Thanks for that I also see amsoil is higher in magnesium and calcium, detergents. Maybe it just carried out some of my break in wear metals? Fingers crossed.

Yup, I’ve been keeping all receipts and keeping a service log. My last test with the higher tin levels came just after a long 500 mile trip which included going over 3 passes. I wasn’t towing but I was hauling quite a bit of weight. This could have had something to do with the higher levels.

Nah, the truck just doesn’t get driven a lot so usually it takes 6 months or more to get to 3k miles. 2-3 oil changes a year. Just wanting to keep clean oil in it. I figure oil is cheap, I enjoy changing the oil, so why not. I plan on keeping this truck. I hear you about the x-30 oils. It’s a...

Just their off the Walmart shelf API certified stuff. I have a lifetime drivetrain warranty on my truck so I’m sticking to API certified 5w-20 oils per my manual to keep that. That’s why I ran the amsoil XL and not their signature series.

Sounds like a solid plan. The idea was to run a few oils and compare picking the better of them. I have Royal purple in now and I have enough for 2 more changes of that so I’ll run all of that, test each change, and then pick between these 3. I do prefer the look of PUP over the amsoil. Had a...

I’d hate for something to be going on and use 5-30 and then have a warranty claim refused because I didn’t use the correct spec. I get what Youre saying though. I wasn’t thrilled about the 5w-20 either

Your numbers are pretty accurate.

They or I transposed them. First one was 7 months 2719 miles. Second was 4 months 2699 miles. It asked for lube time so I’m putting the mileage it was used.

Thanks. I have roughly 14,800 miles on the engine. No hard driving. No towing. It does get hot out here. I am currently running Royal purple and plan on running an analysis on that.

Did a second oil analysis on my Ram 1500 5.7 Hemi. The top was Pennzoil Ultra. The bottom was amsoil XL. Both same weight and both used roughly the same mileage 2700. Copper came down but tin exploded. Anything to worry about there with an engine that has just under 15k miles?

Probably correct I will say one thing I’ve noticed with the amsoil already is that it’s 1-2 psi higher at both idle and driving than the pennzoil was which I’ve read is important for these Hemis. Maybe it’s a thicker 5w-20? We’ll see.

So I read that after I put the boss on. This time I’m running the purolater one which has a better micron rating than the boss. Who would have thought they would have their mid tier filter have a better micron rating than their flagship filter? I want to try the new Fram filter that just hit the...

Yup first one. Gonna run another one after the amsoil runs its course and then was gonna do one once a year after that.