My brother's F150 did the same thing when going from Motorcraft to PP. It has leveled off now(maybe 1/4 qt per 5K miles).
Interesting Pennzoil dino effect
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JHZR2
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Originally Posted By: tig1
Why use an engine flush if the engine is clean. Long time M1 user here and i've never had a need to use that stuff. In fact I never heard of Arx until I joined BITOG a few months ago.
ARX is not an engine flush, and has a great number of "success stories" on here. I had a bottle, so figured this was a good opportunity to use it. If no benefits are gained, nothing is really lost... except a bit of oil consumed.
Long term I will be going back to M1 HM or maxlife, its just interesting, that's all... time will tell what happens. I have about 1600 miles to drive next week, and Ill be watching it closely.
Why use an engine flush if the engine is clean. Long time M1 user here and i've never had a need to use that stuff. In fact I never heard of Arx until I joined BITOG a few months ago.
ARX is not an engine flush, and has a great number of "success stories" on here. I had a bottle, so figured this was a good opportunity to use it. If no benefits are gained, nothing is really lost... except a bit of oil consumed.
Long term I will be going back to M1 HM or maxlife, its just interesting, that's all... time will tell what happens. I have about 1600 miles to drive next week, and Ill be watching it closely.
My '87 Legend did the same thing when I ran one change interval (5k miles) with Pennzoil YB 10w-40.
Since I've owned the car (272k to 400k miles) I've run nothing but Delo 15w-40. Original owner ran Castrol GTX 10w-40.
Using Delo, I'd hit the add a quart mark at 4500 miles. When I used Pennzoil YB 10w-40, it hit the add a quart mark at 3000 miles. I used the YB because I had it laying around and I wanted to use it up.
Anyway, going back to Delo the engine went back to the 4500 mile add a quart interval.
Since I've owned the car (272k to 400k miles) I've run nothing but Delo 15w-40. Original owner ran Castrol GTX 10w-40.
Using Delo, I'd hit the add a quart mark at 4500 miles. When I used Pennzoil YB 10w-40, it hit the add a quart mark at 3000 miles. I used the YB because I had it laying around and I wanted to use it up.
Anyway, going back to Delo the engine went back to the 4500 mile add a quart interval.
My Park Avenue has been consuming some oil during the last 10K miles. Back in '07 I ran my Auto-Rx treatment (on Chevron dino) and then switched in April of '08 to PP. At 2600 miles the low oil message appeared, and I was down half a quart. This continued, with me having to add a quart in 5500 miles/6 months. The last 6 months/4800 miles, I had to add 1.5 quarts.
Now I don't know if it is due to Auto-Rx, if it's due to PP, or if this car normally uses 1/2 quart of any brand of oil by 2600 miles. It's part of the reason I went back to dino on this change; we'll see if it leaks/consumes on Castrol, and if it does, how much.
Now I don't know if it is due to Auto-Rx, if it's due to PP, or if this car normally uses 1/2 quart of any brand of oil by 2600 miles. It's part of the reason I went back to dino on this change; we'll see if it leaks/consumes on Castrol, and if it does, how much.
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