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7
Diesel Mechanics
c/diesel-mechanics•the_dylanthe_dylan•11h ago

Unpopular opinion: I ran a 6.7 Powerstroke on straight 5W-30 for 500 miles and it didn't blow up

We had a real mess with a 2019 F-250 in the shop. The owner had put some weird aftermarket oil in it and it turned to sludge. I had to flush the whole system three times. I was out of our normal 15W-40 fleet oil and needed to get it running for a test. All I had on hand was a case of full synthetic 5W-30 meant for gas pickups. I figured, what's the worst that could happen for a short drive? I put it in, ran it hard on the highway for about 500 miles over a week, and checked the oil pressure the whole time. It held perfect pressure, even pulling a load. The oil looked clean when I drained it. I'm not saying to do this, but it made me question how picky these new engines really are about weight. Has anyone else pushed the limits on oil specs and been surprised?

2 comments
20
Flooring Installers
c/flooring-installers•the_dylanthe_dylan•5d ago
2 comments

Recent Comments

2h ago

in

Heard a bride say she wanted 'just a few wildflowers' for her wedding next month

My cousin runs a farm and the July heat can make certain wildflowers like Queen Anne's Lace go woody and tough in just a few days. I always show clients a picture of what a stem actually looks like at that exact time, not the perfect catalog shot. It changes the conversation from a vague idea to a real choice.

18h ago

in

Noticed an AI tool that changes recipes after seeing a picture of ingredients.

Honestly, that just sounds like more work to me.

1d ago

in

Switched to sketching on paper before CAD and it changed my workflow

Try using a fat marker so you can't get detailed.

2d ago

in

Rant: That one time a customer's kindness actually paid off

Wait, they gave him a whole thermos? Like, just gave it away? That's wild. I've seen people hand over a bottle of water maybe. But a whole thermos of soup is a commitment. You don't just have an extra thermos lying around. That family went into their cabinet for that. Makes you wonder how bad that storm really was.

2d ago

in

Update: I tried a new flower food mix and my white roses turned blue

Yeah, that soil thing is so weird, right? I get what your cousin went through, @kelly.parker. Trying to get a specific color and having the dirt mess it up is the worst. It feels like all that care just gets ruined by something you can't control. Makes you want to just give up on trying for anything fancy sometimes.