Trailblazer Forum banner
61 - 80 of 88 Posts
I decided to do my first oil change today on my RS with the 1.3T engine which now has 3500 miles.

The 1.3T engine calls for 4.8 quarts of 0W/20 Dexos synthetic oil and a GM/AC Delco PF66 or UPF66R oil filter. K&N also makes an oil filter for the 1.3T, part number HP-1021. If you have the 1.2T engine the oil is 5W/30 and also requires a different filter. I bought Royal Purple oil since it's higher quality than most oils, but I would also recommend Mobil 1 which is factory fill on most GM's.
View attachment 273

I removed the whole plastic splash shield to get some pictures, but there is an access door that's easier to remove for oil changes.

If you remove the whole shield it's (13) 7mm screws and (3) plastic reusable rivets that hold the shield in place. The smaller access panel is just (3) 7mm screws.

The drain plug is a twist lock/unlock design with a large o-ring so it doesn't require a torque spec. The plug requires an 8mm allen wrench and is located on the plastic oil pan. If you would like to have a spare oil drain plug on hand the GM part number is 55498782.
View attachment 270

View attachment 271

View attachment 272

View attachment 902

The first recommended oil change is at 7500 miles, but after only 3600 miles the oil was very dark which I figured it would be for break in oil, so don't wait 7500 miles, lol.

I also clean the MAF sensor when doing an oil change. If you decide to do this you'll need to remove (2) T20 torx screws and use CRC MAF cleaner.

One word of caution! When filling with new oil, the fill hole has a small drain into the engine so pour the oil in slowly or it will overflow and spill out.

Here are some random pics I took while I was underneath.

Cool Watts Link rear end location system which keeps the rear axle centered properly.
View attachment 274

Exhaust system.
View attachment 275

View attachment 276

View attachment 277

View attachment 278

One thing I found interesting was that the electric parking brake locks the front wheels and not the rear wheels like most vehicles.
That's so clean, brother.
 
Just changed the oil and filter in my 2023 Activ. Had 3,632 miles. I removed the skid plate before draining the oil and changing the filter. Fairly simple job overall to complete. Not real crazy about the plastic oil pan. I replaced the filter with a Fram. I’ve been using Fram filters for years. Just my preference. Used synthetic oil as usual. I will definitely be a getting a spare oil plug or two just to have on hand.
 
I don’t think so. Being they only offer one free oil change when you purchase the vehicle. Not to mention what the dealership charges for a oil change there after.
 
Discussion starter · #66 ·
Won't changing oil yourself effectively void your warranty? Always heard it would.
Not sure where you heard this, but it's completely false. I service my 23 Corvette without warranty issues just like the past 15 vehicles I've owned which were all under warranty at some point in time. As long as you use the correct oil and filter you won't have any problems.
 
Not sure where you heard this, but it's completely false. I service my 23 Corvette without warranty issues just like the past 15 vehicles I've owned which were all under warranty at some point in time. As long as you use the correct oil and filter you won't have any problems.
Probably heard it from a dealership at some point. Good to know this! Thanks for the heads up.
 
Just changed the oil and filter in my 2023 Activ. Had 3,632 miles. I removed the skid plate before draining the oil and changing the filter. Fairly simple job overall to complete. Not real crazy about the plastic oil pan. I replaced the filter with a Fram. I’ve been using Fram filters for years. Just my preference. Used synthetic oil as usual. I will definitely be a getting a spare oil plug or two just to have on hand.
Won't changing oil yourself effectively void your warranty? Always heard it would.
No. Keep date, mileage and receipt of correct oil used.
Change my oil myself on AWD RS.
Piece of cake. PF66 filter sometimes hard to find.
Been buying the filter at local Cadillac dealer.
 
No. Keep date, mileage and receipt of correct oil used.
Change my oil myself on AWD RS.
Piece of cake. PF66 filter sometimes hard to find.
Been buying the filter at local Cadillac dealer.
Keeping records could be important if you plan to trade in a vehicle in the future.

I just traded in a vehicle when I purchased my Trailblazer LS AWD (1.3l 9-speed auto) and the dealer wanted to review all service records.
Since I had my past service done at a gm dealing it was all in the computer system which appeared to make them happy.

I guess I will use this post as kind of my intro to the forum (in full disclosure I did post a reply yesterday).

I actually got nearly 88% of my original purchase price on a trade-in vehicle that was nearly 4 years old (extremely low miles and in good shape) and I got a really good price on this car new.

I got my Trailblazer LS AWD at around 1K below MSRP and it had Chevy Safety Assist appearing as standard on the invoice and Cruise Control as the only option.

I wish it had blind spot monitoring and I would have been happy to pay for rear park assist but I could not pass up the LS AWD which is perfect for me, only one in my area and I think the used car prices may be on the way down. I do not need heated seats, heated steering wheel, power seats, push-button start, two-tone paint, I will never purposely go off-road, etc. Nothing wrong with the stuff just not for me.

Not too long ago I was in a NASA space robots contest where I wrote my own code for stereo vision, lidar, IMUs, AWD, etc. I also was in a neural network contest using what is termed convolution neural networks which appear what everyone is using for autonomous vehicles. With any of the safety stuff, my take is the driver always has to do his best and it is possible the autonomous software may help. I would never trust say blind spot monitoring 100% of the time.

Maybe over time I will write my own code and integrate my own blind spot monitoring system. I have patents kind of related to this type of stuff and have been in engineering for over 30 years etc.

I can tell people on this forum enjoy autos up to 68 posts just on an oil change that's great!
 
I decided to do my first oil change today on my RS with the 1.3T engine which now has 3500 miles.

The 1.3T engine calls for 4.8 quarts of 0W/20 Dexos synthetic oil and a GM/AC Delco PF66 or UPF66R oil filter. K&N also makes an oil filter for the 1.3T, part number HP-1021. If you have the 1.2T engine the oil is 5W/30 and also requires a different filter. I bought Royal Purple oil since it's higher quality than most oils, but I would also recommend Mobil 1 which is factory fill on most GM's.
View attachment 273

I removed the whole plastic splash shield to get some pictures, but there is an access door that's easier to remove for oil changes.

If you remove the whole shield it's (13) 7mm screws and (3) plastic reusable rivets that hold the shield in place. The smaller access panel is just (3) 7mm screws.

The drain plug is a twist lock/unlock design with a large o-ring so it doesn't require a torque spec. The plug requires an 8mm allen wrench and is located on the plastic oil pan. If you would like to have a spare oil drain plug on hand the GM part number is 55498782.
View attachment 270

View attachment 271

View attachment 272

View attachment 902

The first recommended oil change is at 7500 miles, but after only 3600 miles the oil was very dark which I figured it would be for break in oil, so don't wait 7500 miles, lol.

I also clean the MAF sensor when doing an oil change. If you decide to do this you'll need to remove (2) T20 torx screws and use CRC MAF cleaner.

One word of caution! When filling with new oil, the fill hole has a small drain into the engine so pour the oil in slowly or it will overflow and spill out.

Here are some random pics I took while I was underneath.

Cool Watts Link rear end location system which keeps the rear axle centered properly.
View attachment 274

Exhaust system.
View attachment 275

View attachment 276

View attachment 277

View attachment 278

One thing I found interesting was that the electric parking brake locks the front wheels and not the rear wheels like most vehicles.
Hello. Please tell me the oil part number. Royal Purple 51020 API-Licensed SAE 0W-20 High Performance Synthetic Motor Oil
 
Discussion starter · #72 · (Edited)
I decided to do my first oil change today on my RS with the 1.3T engine which now has 3500 miles.

The 1.3T engine calls for 4.8 quarts of 0W/20 Dexos synthetic oil and a GM/AC Delco PF66 or UPF66R oil filter. K&N also makes an oil filter for the 1.3T, part number HP-1021. If you have the 1.2T engine the oil is 5W/30 and also requires a different filter. I bought Royal Purple oil since it's higher quality than most oils, but I would also recommend Mobil 1 which is factory fill on most GM's.
View attachment 273

I removed the whole plastic splash shield to get some pictures, but there is an access door that's easier to remove for oil changes.

If you remove the whole shield it's (13) 7mm screws and (3) plastic reusable rivets that hold the shield in place. The smaller access panel is just (3) 7mm screws.

The drain plug is a twist lock/unlock design with a large o-ring so it doesn't require a torque spec. The plug requires an 8mm allen wrench and is located on the plastic oil pan. If you would like to have a spare oil drain plug on hand the GM part number is 55498782.
View attachment 270

View attachment 271

View attachment 272

View attachment 902

The first recommended oil change is at 7500 miles, but after only 3600 miles the oil was very dark which I figured it would be for break in oil, so don't wait 7500 miles, lol.

I also clean the MAF sensor when doing an oil change. If you decide to do this you'll need to remove (2) T20 torx screws and use CRC MAF cleaner.

One word of caution! When filling with new oil, the fill hole has a small drain into the engine so pour the oil in slowly or it will overflow and spill out.

Here are some random pics I took while I was underneath.

Cool Watts Link rear end location system which keeps the rear axle centered properly.
View attachment 274

Exhaust system.
View attachment 275

View attachment 276

View attachment 277

View attachment 278

One thing I found interesting was that the electric parking brake locks the front wheels and not the rear wheels like most vehicles.
I decided to do my first oil change today on my RS with the 1.3T engine which now has 3500 miles.

The 1.3T engine calls for 4.8 quarts of 0W/20 Dexos synthetic oil and a GM/AC Delco PF66 or UPF66R oil filter. K&N also makes an oil filter for the 1.3T, part number HP-1021. If you have the 1.2T engine the oil is 5W/30 and also requires a different filter. I bought Royal Purple oil since it's higher quality than most oils, but I would also recommend Mobil 1 which is factory fill on most GM's.
View attachment 273

I removed the whole plastic splash shield to get some pictures, but there is an access door that's easier to remove for oil changes.

If you remove the whole shield it's (13) 7mm screws and (3) plastic reusable rivets that hold the shield in place. The smaller access panel is just (3) 7mm screws.

The drain plug is a twist lock/unlock design with a large o-ring so it doesn't require a torque spec. The plug requires an 8mm allen wrench and is located on the plastic oil pan. If you would like to have a spare oil drain plug on hand the GM part number is 55498782.
View attachment 270

View attachment 271

View attachment 272

View attachment 902

The first recommended oil change is at 7500 miles, but after only 3600 miles the oil was very dark which I figured it would be for break in oil, so don't wait 7500 miles, lol.

I also clean the MAF sensor when doing an oil change. If you decide to do this you'll need to remove (2) T20 torx screws and use CRC MAF cleaner.

One word of caution! When filling with new oil, the fill hole has a small drain into the engine so pour the oil in slowly or it will overflow and spill out.

Here are some random pics I took while I was underneath.

Cool Watts Link rear end location system which keeps the rear axle centered properly.
View attachment 274

Exhaust system.
View attachment 275

View attachment 276

View attachment 277

View attachment 278

One thing I found interesting was that the electric parking brake locks the front wheels and not the rear wheels like most vehicles.
Part number ROY51020. This is the 5 quart jug and the 1.3 takes 4.8 quarts.

Royal Purple 0w20 5 quart (Walmart)
I did not find a part under this number. Perhaps there should be a digital designation? For example, as GM-19391402
 
Discussion starter · #74 ·
I looked at manufacturers website and didn't see a part number, only retailer specific part numbers. Maybe RP's website has it listed somewhere?
 
Discussion starter · #75 ·
According to their website the 5 quart jug is 51020 and the 1 quart bottles are 01020.
 
I decided to do my first oil change today on my RS with the 1.3T engine which now has 3500 miles.

The 1.3T engine calls for 4.8 quarts of 0W/20 Dexos synthetic oil and a GM/AC Delco PF66 or UPF66R oil filter. K&N also makes an oil filter for the 1.3T, part number HP-1021. If you have the 1.2T engine the oil is 5W/30 and also requires a different filter. I bought Royal Purple oil since it's higher quality than most oils, but I would also recommend Mobil 1 which is factory fill on most GM's.
View attachment 273

I removed the whole plastic splash shield to get some pictures, but there is an access door that's easier to remove for oil changes.

If you remove the whole shield it's (13) 7mm screws and (3) plastic reusable rivets that hold the shield in place. The smaller access panel is just (3) 7mm screws.

The drain plug is a twist lock/unlock design with a large o-ring so it doesn't require a torque spec. The plug requires an 8mm allen wrench and is located on the plastic oil pan. If you would like to have a spare oil drain plug on hand the GM part number is 55498782.
View attachment 270

View attachment 271

View attachment 272

View attachment 902

The first recommended oil change is at 7500 miles, but after only 3600 miles the oil was very dark which I figured it would be for break in oil, so don't wait 7500 miles, lol.

I also clean the MAF sensor when doing an oil change. If you decide to do this you'll need to remove (2) T20 torx screws and use CRC MAF cleaner.

One word of caution! When filling with new oil, the fill hole has a small drain into the engine so pour the oil in slowly or it will overflow and spill out.

Here are some random pics I took while I was underneath.

Cool Watts Link rear end location system which keeps the rear axle centered properly.
View attachment 274

Exhaust system.
View attachment 275

View attachment 276

View attachment 277

View attachment 278

One thing I found interesting was that the electric parking brake locks the front wheels and not the rear wheels like most vehicles.
if the dash % indicator has been reset, or previous owner forgot to reset it, will it be accurate? asking because i purchased my trailblazer and it showed 20% oil life. and is now asking for a change. someone told me it's on a mile counter. someone else says it's a viscosity sensor and will be accurate regardless of when it was reset. i would call the dealership but who tf would trust a dealership? should i just change it, reset it and start from scratch, or am i wasting time/money?
 
Discussion starter · #78 ·
if the dash % indicator has been reset, or previous owner forgot to reset it, will it be accurate? asking because i purchased my trailblazer and it showed 20% oil life. and is now asking for a change. someone told me it's on a mile counter. someone else says it's a viscosity sensor and will be accurate regardless of when it was reset. i would call the dealership but who tf would trust a dealership? should i just change it, reset it and start from scratch, or am i wasting time/money?
The oil life monitor (OLM) uses an algorithm to determine the percentage left. It uses time, temperature, miles driven, calculated engine load, rpm, etc. If you bought a new Trailblazer and didn't drive it for a year the OLM will still get down to 0% based on only time. Oil changes are cheap insurance, so I'd just change the oil and reset the OLM in the driver information center (DIC).
 
Discussion starter · #80 ·
  • Like
Reactions: psnyder53
61 - 80 of 88 Posts