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Pennzoil motor oil
An oil change extravaganza today.

2017 F150 5.0 screw
116,567mi/ just shy of 3k oci
Out: Valvoline HMFS 5w20 and microguard select
In: Castrol Edge FS euro (the $9 a jug Walmart special) and a 51372XP

2006 Explorer 4.0
222,362mi / 3k oci
Out: Valvoline High Mileage Full Synthetic 5w30 and 500ml rislone, ST2
In: Valvoline Restore and Protect 5w30, 51372XP

2018 Highlander 3.5v6
Out: Valvoline Restore and Protect and Tough Guard
In: Valvoline Restore and Protect and Mobil 1 filter
92976mi / 3,522 oci

Mother in laws 2021 cx30 2.5 non-turbo
Out: Shop fill and Mighty (?) filter
In: Castrol EDGE High Mileage Full Synthetic 0w20 and STPXL filter
Didn’t look at mileage, about 4500oci according to her.
(Plus plugs and wires)
 
BigBear4583 said:
An oil change extravaganza today.

2017 F150 5.0 screw
116,567mi/ just shy of 3k oci
Out: Valvoline HMFS 5w20 and microguard select
In: Castrol Edge FS euro (the $9 a jug Walmart special) and a 51372XP

2006 Explorer 4.0
222,362mi / 3k oci
Out: Valvoline High Mileage Full Synthetic 5w30 and 500ml rislone, ST2
In: Valvoline Restore and Protect 5w30, 51372XP

2018 Highlander 3.5v6
Out: Valvoline Restore and Protect and Tough Guard
In: Valvoline Restore and Protect and Mobil 1 filter
92976mi / 3,522 oci

Mother in laws 2021 cx30 2.5 non-turbo
Out: Shop fill and Mighty (?) filter
In: Castrol EDGE High Mileage Full Synthetic 0w20 and STPXL filter
Didn’t look at mileage, about 4500oci according to her.
(Plus plugs and wires)
Click to expand...
Nice choices
 
2011 Toyota Camry LE 4 banger, 72K, 5,800 mile 5 month OCI
Out: Mobil 1 Advanced blah blah blah 0w20, Toyletta A1 filter
In: same

tire rotation and brake check; all good. This car used to belong to the lady who lived across the street from my folks; I used to visit with her and took care of her Camry. When she passed at 96 (I think) her family gave me the perfect Camry. My friend uses it. Dang thing runs and drives perfect. Helps with $5.56 rag gas.
 
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2020 Mazda CX5 Grand Touring 2.5L N/A
60544 Total Miles
~5500 miles and 5 months on OCI

Out:
Valvoline Full Synthetic 0w-20
NAPA Gold Oil Filter FIL7002

In:
Valvoline Full Synthetic 0w-20
NAPA Gold Oil Filter FIL7002

Valvoline continues to make the Mazda happy.

Tires rotated, and for the first time since they were put on the CX5 (or an individual tire was replaced/remounted/balanced), all 4 were rebalanced.
 
1977 Chevrolet C20
350 small block V8
Out: unknown oil, Fram Extra Guard PH5 filter
In: Chevron Delo 400 XLE SB 15w40, Fram Extra Guard PH5 filter

1993 GMC Sierra 1500
5.7 TBI V8
Out: unknown oil, Napa Proformer 21036 filter
In: O'Reilly's 10w30, AcDelco PF52E filter

2001 Dodge Durango
4.7 V8
Out: unknown oil, Super Tech ST16 filter
In: Chevron Delo 400 XLE SB 15w40, Mopar MO-090 filter

2010 Chevrolet Silverado 1500
5.3 Vortec V8
Out: unknown oil, Napa Gold 7060 filter
In: Mobil 1 ESP 0w30, AcDelco PF48E filter
 
1985 Mazda RX-7 1.1L 12a Rotary, guessing maybe about 20k on the engine since it was replaced in 2002
Oil last changed: Oct, 2024 (Parked for most of this winter), run for 1,736 miles
Out: Meijer store brand (Warren distribution) 10W40 conventional, Motorcraft FL-810-A oil filter
In: 4.9 qts Castrol GTX 20W50 conventional (Currently on closeout at AAP), Mazda B6Y1-14-302A oil filter, new crush washer for the drain plug.

20260515_185415(2)(1).webp


20260515_175202(1).webp

20260515_180429(1)(1).webp
 
Last edited:
1000004804.webp

As wasteful as it felt to dump the O'Reilly Syntec so soon, I didn't trust oil that had been in an overheated engine.

2022 Chevrolet Trailblazer
63,206 miles
186 miles on oil

Out: O'Reilly Syntec 0W-20, Microguard Select
In: 4 quarts Castrol GTX*, Fram Drive
* remaining 0.8 made up of leftover Syntec and Mobil Synthetic High Mileage
TheOtherAndy said:
View attachment 337671Bit late posting this one up. Coolant flow control valve (over-engineered $600 thermostat) failed and the truck started overheating at freeway speed. Dumped the Valvoline Hybrid 0w-20 when I got home.

2022 Chevrolet Trailblazer
63,020 miles on vehicle
1,210 miles on oil
Out: Valvoline Full Synthetic Hybrid 0w-20, Carquest Premium
In: O'Reilly Syntec 0w-20, Microguard Select.

Seems like the car is a bit noisier on this oil. Also, the dealership test drove it twice and got the "engine overheated" warning both times, so I'll be dumping the oil again in the next few days (to be replaced with more Valvoline Hybrid, Castrol GTX, or maybe a Frankenbrew with two quarts of resolute I have on hand).
Click to expand...
 
TheOtherAndy said:
View attachment 337802
As wasteful as it felt to dump the O'Reilly Syntec so soon, I didn't trust oil that had been in an overheated engine.

2022 Chevrolet Trailblazer
63,206 miles
186 miles on oil

Out: O'Reilly Syntec 0W-20, Microguard Select
In: 4 quarts Castrol GTX*, Fram Drive
* remaining 0.8 made up of leftover Syntec and Mobil Synthetic High Mileage
Click to expand...
It isn’t wasteful in my opinion. The engine is significantly more important than the oil. This is like throwing out meat you suspect may be bad. Not worth getting sick over it for a couple bucks. Same thing.
 
Wife's 2025 Lexus ES350
Odometer: 5,550 miles
OCI: 5,550 miles

The Lexus complimentary 5K service does not include an oil change, so this was the first one. The next one will be at the dealer.

Out: factory fill 0w-20 synthetic, no filter change
In: Mag1 0w-20 synthetic

The drain plug gasket was ridiculously hard to remove, so I left it on rather than booger it up. This is a 36 month lease, so I plan to do 5K oil changes and 10K filter changes with long life filters. Even if I buy the car, it will still be better maintained than required.
 
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Wife’s new-to-her 2012 Mazda 2 5-door hatchback; 1.5L 4-cylinder auto; 130,000km and change on car (excellent condition)

Out: Something completely black and sludgy, and a rusty(!) CarQuest red and white filter.

In: 4L Castrol GTX Full Synthetic 0W-20 and a ‘Certified’ PH6607 filter.

Will probably be in there ‘for the summer’, wife does nothing but short trips around town so will only put 3-4K miles on it before fall. May have to ‘adjust’ viscosity if it burns a lot; but no leaks or wet spots on engine, so should be okay!
 
2010 Chevy Silverado. 209,000 miles.
Out: Pennzoil Platinum Ultra 5W30 8,500 miles
In: Pennzoil Platinum Ultra 5W30

Left the Fram Ultra filter on for a second OCI.

This was my last jug of natural gas derived Pennzoil Ultra Platinum. Here is a shot of what’s on tap for the next change. This jug of Pennzoil Ultra Platinum does not mention natural gas. This was planned before the issues in Qatar.

FFE75C1E-98C7-4C4B-8603-B893C81FD511.webp
 
Snagglefoot said:
2010 Chevy Silverado. 209,000 miles.
Out: Pennzoil Platinum Ultra 5W30 8,500 miles
In: Pennzoil Platinum Ultra 5W30

Left the Fram Ultra filter on for a second OCI.

This was my last jug of natural gas derived Pennzoil Ultra Platinum. Here is a shot of what’s on tap for the next change. This jug of Pennzoil Ultra Platinum does not mention natural gas. This was planned before the issues in Qatar.

View attachment 337996
Click to expand...
The formulation didn't change. Just the label. They didn't think customers understood the significance.
 
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