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Engine Oil Change Question

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Old Apr 4, 2013 | 04:40 PM
  #1  
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Default Engine Oil Change Question

i am getting ready to do my 60k service. Purchase the parts from Sewell and getting ready to buy the engine oil locally. Since I wasn't sure which oil to purchase I checked the service records.
I bought the car in April 2012 as a CPO. The dealer used Pennzoil Synthetic

I took it back to the same dealer in Oct 2012 to get my 1st free oil change and in reviewing the service receipt they used Pennzoil Regular, but I don't know which oil weight.

I've read that once you use Synthetic you shouldn't go back to regular oil. Unfortunately I didn't pay attention to this when I had the oil change back in Oct. So now that I need to change the oil can I use Pennzoil regular and if yes, which weight, or should I use Pennzoil Synthetic.

Thanks
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Old Apr 4, 2013 | 05:00 PM
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Originally Posted by silva1181
i am getting ready to do my 60k service. Purchase the parts from Sewell and getting ready to buy the engine oil locally. Since I wasn't sure which oil to purchase I checked the service records.
I bought the car in April 2012 as a CPO. The dealer used Pennzoil Synthetic

I took it back to the same dealer in Oct 2012 to get my 1st free oil change and in reviewing the service receipt they used Pennzoil Regular, but I don't know which oil weight.

I've read that once you use Synthetic you shouldn't go back to regular oil. Unfortunately I didn't pay attention to this when I had the oil change back in Oct. So now that I need to change the oil can I use Pennzoil regular and if yes, which weight, or should I use Pennzoil Synthetic.

Thanks
You could use either Dino oil or Synthetic. It won't hurt either way. By law synthetics and Dino oil have to be fully compatible with each other. Many oil gurus think the most important is to stick with one brand. 5W-30 is the weight of oil to use.

Have fun.
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Old Apr 4, 2013 | 05:04 PM
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Go back to synthetic - and stick to it. One cycle of regular oil won't hurt. I've used synthetic only in all my vehicles since '77. My '09 has 5W30 on the oil cap, would think yours does as well - but check your owner's manual.

I'm partial to Amsoil, and use it almost exclusively. RedLine is another top synthetic. Valvoline is a good one.
Mobil One has gone downhill and don't recommend it. I think Pennzoil is a mid-grade synthetic, and probably ok.

In a Lexus, you should get 250k to 300k miles with no internal engine problems if you change every 5k.
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Old Apr 4, 2013 | 05:10 PM
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Thanks for the replies, very helpful.
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Old Apr 4, 2013 | 06:35 PM
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when i had my 2005 Honda Accord V6, i been running Mobil 1 Syn all the way... up until my friend told me if i am changing it every 3000 miles no point to waste money and use dino oil instead since it cleans better than syn. so ever since then i been using dino oil i feel the car running much stronger and smoother. He also told me to stay away from pennzoil since it got so much wax in it and its bad for the engine
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Old Apr 4, 2013 | 08:17 PM
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Thanks Brabusx2, appreciate the input
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Old Apr 5, 2013 | 06:26 AM
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I was gonna say your not suppose to go back to regular oil once on synthetic. Like GatorNappr said go back and stay with it. That's what my dealership used was Mobil 1 Syn.
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Old Apr 5, 2013 | 07:40 AM
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I use mobil 1 syn. Just stick with one type...
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