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Marajin · 03-01-2016, **(Subject: tune up )**

(02-27-2016 )sbtrucking Wrote: looks like it was cleaned around 100k miles ago if I have to guess, the egr valve and the egr cooler, turbo, and actuator looks like have been replaced around the same time

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A picture is worth 1,000 Delta-P sensors?

That will cause fuel mileage loss, EGR valve positioning problems, and regen issues.

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BTW - Regular Rotella-T has better wear protection than T6 according to that oil chart that used to be posted on the old site.

sbtrucking · 03-03-2016, **(Subject: tune up )**

thanks for catching the crack, I will replace the hoses, r they special made hose?

interesting I thought synthetic would be better more resistant to heat and dilution brakedown,
do you have a link to the tests please

Waterloo · 03-03-2016, **(Subject: tune up )**

(03-03-2016 )sbtrucking Wrote: thanks for catching the crack, I will replace the hoses, r they special made hose?

interesting I thought synthetic would be better more resistant to heat and dilution brakedown,
do you have a link to the tests please

Yes, they are a special hose/line. I bought mine at my local Cummins shop, I think I paid $40 for the pair. They should be a regular stock item, they were at my shop. And they were a bitch to get on, at least on my motor, a little force was needed.