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My wife’s 2021 Mercedes GLC 4Matic suv has completed its first three services. When I purchased the car, these were included. The dealership is offering a package price for the next three services. Aside from the usual oil change, cabin filter changes it includes 2 brake fluid changes...

With all the concerns regarding intake valve deposits, I have only used Top Tier gasoline in my Lexus. 93 octane Shell, Mobil or Costco. Recently a Gulf station opened nearby. 93 octane is 55 cents a gallon cheaper than Mobil or Shell. Not sure about Costco as I am nearby. I looked it up on Top...

My 2021 Mercedes GLC 300 just gave a ”check coolant level” warning. Waited for the engine to cool then opened the expansion tank. There was coolant in there but it is low. I will be bringing it to the dealership tomorrow but would appreciate your thoughts on potential problems. My thoughts...

My wife’s 2021 MB GLC 300 was purchased new and only serviced by the Mercedes dealership for its annual service. Part of the deal I made when purchasing included the first 3 services. The owners manual calls for 229.51 spec oil which was used for the first two services. The last oil change was...

I recently posted about my 8 year old battery that has given me no problems but is at the end of life. High internal resistance and low CCA. My question is this. Does an old battery put more strain on the charging system and result in earlier failures? Thanks!

My Lexus GS 350 is going on 8 years with the original battery. The car has never had a problem starting and all the electronics work properly. Regardless, I decided to purchase a battery tester. Here are the results. I am planning on replacing the battery asap. your thoughts.

Just finished 70K mile service on my 2015 Lexus GS 350. Cabin air filter was in for 10K miles. Bought a bunch of these from Amazon several years ago when they were cheap. About $5 at the time. More than doubled now last time I checked.

Just finished changing the oil in my 2015 Lexus GS 350. 70K miles. I completed two 5K oil changes using 1 qt of HPL EC prior to this. No evidence of any particulate matter in the oil filter unlike the first run. I used HPL premium passenger car 0W-20 and a Fram Ultra filter. Plan on using this...

Just finished my first oil change with HPL EC30 and Mobil1 ESP 0W30 for 5k miles. Prior to this I have been changing the oil in my 2015 Lexus GS 350 at 5k mile intervals with oil filter at 10k using various synthetic oils. Mostly 0w20, but occasional 0w30. The car currently has 65k miles. In my...

I have been following the HPL threads with great interest. There is no doubt in my mind that this oil is superior to "off the shelf" synthetics. I have questions as to whether the extra expense is worth it. A bit of background: I have been changing the oil in my 2015 Lexus GS350 with 0w-20...

Just finished replacing the engine air filter in my Lexus. 60k on the car, 30k on the filter. Remove the intake tube. Interesting to note there is an extra filter attached to the tube after the air filter. I guess just a little additional filtration. Looking at the filter it appears it could...

Sorry for the second post on the same topic, but I couldn't figure out how to edit the first one. Here are the promised pictures of the spark plugs taken out of my 2015 Lexus GS 350 at 60K miles. These were replaced as required to maintain the emissions warranty. Let me know your thoughts.

Just finished replacing the spark plugs on my Lexus 2GR-FSE engine. Followed DIY Dan YouTube video. Being a north south engine configuration, I figured it was definitely doable by a dentist. Biggest problem was bulky wiring harnesses that block access to the coil packs and figuring how to...

My 2015 Lexus GS350 AWD has an interesting "problem" Since new, the brakes squeal only in reverse. Back out of the garage first thing in the morning, squeal. Start going forward and slow down very gradually for the first stop sign, complete quiet. This happens every time I back the car out of...

I truly enjoy reading and looking at the pictures of all the excellent detail jobs posted here. For many years I would spend an entire day cleaning, waxing and interior detailing. Many of the waxes I used required doing no more than 1 square foot at a time for fear of never being able to remove...

A good friend has a 2016 Tahoe bought new. Recently he noticed that the ABS would activate with brake pulsation even with light braking on non slippery surfaces. Has a call into the dealer for evaluation but has had no return call. Any ideas what would cause the ABS to activate when not...

About a year ago I purchased Raybestos Element 3 front rotors and pads from Rockauto based on advice gained here. The price was reasonable and they have been working quite well. Now the rear brakes need replacement. Ordered the same rotors from Rock listed as a private label close out, but...

Thought I would post this for those of you who may have seen the advertisements but were unwilling to give it a try. A bit of background. A good friend of mine was leaning against the rear quarter panel with his keys in his hand. Result was this scratch. I was aggravated but he is a good friend...

As the title states, I need some recommendations for front brake rotors and pads for my 2015 GS 350 AWD. I did a search of the forums and Google, but the recommended rotors don’t seem to be available for this model. Willing to go OEM if that is what’s needed, but would like to save some money if...

I just purchased a 2021 Mercedes GLC 300 4Matic SUV with the 2L turbocharged engine. It calls for oil changes every 10K or 1 year but I plan on changing at 5K. In looking at the owner's manual it states that I should use either 229.51, 229.61 or 229.71. The 229.71 is listed with an asterisk...