Yes both test was Walmarts SuperTech Full Synthetic. From the same jugs. Pretty good oil for $14.50 per 5 quart jug. Got some Rotella Gas truck 5w20 in the engine now. Probably wont test that one. Then I got Pennzoil 0w20 Probably have the Pennzoil tested to see how it compares to the Super Tech.
Grumpy Bear I just got my second test results back a couple days ago. I will post the report here again. The 20 weight oil seems to be holding up good in the 4.3 v6. Both of these reports was a mix of 3 quarts 0w20 and 3 quarts 5w20. My truck has the factory oil cooler which is where the higher copper is coming from. My understanding is most of the 4.3 v6 don't have the factory oil cooler.
This is the one I have. https://www.amazon.com/MBRP-S5080409-Stainless-Single-Exhaust/dp/B00FTTVX2G
Yea that would make removal easier. Doubt you would have to raise the back of truck any. Spare tire might still be in the way.
Yes I put it on myself. If you remove your spare tire then put a jack under hitch or bump and raise the back till the tires are almost off the ground you can remove your stock exhaust without cutting it. You have to turn it and slide it out the passenger side of truck. You will have to replace the clamp I listed in the first post. Unless you can get bolt off if the truck don't have many miles on it. No I don't think it is too loud or annoying.
I have not noticed any drone. Here is another video at road speed.
I have the MBRP 409 stainless single out let on my 4.3 v6. I like the way it sounds. I would get the stainless version instead of the installer series. Amazon has them at a good price and sometimes Summit Racing has them on sale. You can install it yourself in a couple hours. You will need a new clamp for where in connects to the catalytic converter. o'reilly auto parts have the clamp or amazon. https://www.amazon.com/Walker-36522-Clamp/dp/B00Q0DMZSQ/ref=pd_cp_263_1?pf_rd_m=ATVPDKIKX0DER&pf_rd_p=ef4dc990-a9ca-4945-ae0b-f8d549198ed6&pf_rd_r=ETHAARN5KSGZ0X3FXV9Y&pd_rd_wg=tgKAH&pf_rd_s=desktop-dp-sims&pf_rd_t=40701&pd_rd_w=a8E3B&pf_rd_i=desktop-dp-sims&pd_rd_r=9efc0f51-f298-11e8-a8c6-1b706237d91c&pd_rd_i=B00Q0DMZSQ&psc=1&refRID=ETHAARN5KSGZ0X3FXV9Y Here is a video of it on mine.
I have 4 bed tie down rings factory GM part number 23146899 These was in truck when I bought it new. I never used them and took them out. $35 shipped to your door USPS. I have Paypal.
Ever consider trying a couple tanks of E85 to see what you could get? Ran my last oil change on only E85 and got a average of 16 mpg over 7460 miles. That was 23 tanks. Cost was $0.14 mile. This oil change I am only using 87 octane E10 and so far getting 20.7 average over 3 tanks. Cost so far $0.13 mile. Using Fuelly .com to track. http://www.fuelly.com/driver/atlasfbg2
Grumpy Bear Here is my oil analysis of my 4.3 v6 using 20 weight oil. Thought I would share it with you since we both used 20 weight oil. I know you posted your results in another thread but they no longer show up. This is a mix of 3 quarts of 0w20 and 3 quarts of 5w20 Walmart Supertech Full Synthetic. No make up oil was added. Used E85 fuel the entire oil change. Currently I am using the same mix of oil but going to use 87 octane E10 fuel this time. Doubt I will see and difference but never know.
The chains are lifetime but that belt you see is only good for 150,000 miles.
I ran the stock factory tune. Cause there was no mpg increase with the other tunes. The shift points only change at wide open throttle. Don't see a need to change them or rev limit on a stock engine. The shift firmness on street or higher is way to hard in my opinion. Cant be good for the transmission in my opinion. The throttle and shift response felt good at those settings. I also had a Superchips tuner. Did not like the 2nd gear shift.Felt like the truck was getting rear ended.
I had a Hypertech I used on my 4.3 v6. What I used was stock engine tune, stock rev limit, stock shift points, stock firmness, sport throttle response, sport shift response, street tcc slip, v4 mode off. With the 87 octane tune you only get a peak of 4 horse and 2 ft lb torque gain. The 93 octane tune gives you 8 horse and 8 ft lb torque gain.Their dyno graph starts out at 2750 rpm. Probably don't want to show you anything lower cause it loosing power.
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