DrPepper Posted August 26, 2022 Share Posted August 26, 2022 Ok, time for what's probably a silly question! I'm chuffed with myself for completing my first home service on my 21 year old Mk1 today. The main reason I was still taking it to the garage was the oil change. Just sounded like such a faff. However, I finally broke my oil change cherry, and it was far easier than I thought. My question is....I swear the car drives much better after the change! In acceleration mainly, seems more responsive. Also seems to run more quietly. I'm curious if this is just a placebo effect, or if anyone else has had this? Now, it has been 2 years since the last oil change, and also I replaced the air filter....but the old air filter looked fine. Simultaneously I've replaced a faulty o2 sensor, so maybe it's that, but I wouldn't have expected an instant change from that. I would have thought that would show up more in MPG. Anyway. Am I talking *****? 😂 Quote Link to comment Share on other sites More sharing options...
Tizer Posted August 26, 2022 Share Posted August 26, 2022 Changing the O2 Sensor would have made the car drive better because would have been in Open Loop with the faulty one instead of Closed Loop. I also feel that my cars drive better after an oil change, especially the older ones that I have had. Maybe because the old oil will be thicker with all the contamination or maybe it is the placebo effect, who knows. 2 Quote Link to comment Share on other sites More sharing options...
unofix Posted August 26, 2022 Share Posted August 26, 2022 42 minutes ago, DrPepper said: I replaced the air filter....but the old air filter looked fine. Did you try breathing through it to see how easy the air came through ? 🤣 Yes your car probably does run a little better, but it will be a combination of all the parts you replaced and the placebo effect. Quote Link to comment Share on other sites More sharing options...
alanfp Posted August 26, 2022 Share Posted August 26, 2022 Agreed - a combination off all those things. But when I worked in a large office we all agreed that our cars drove slightly quicker immediately after we'd washed them! 1 1 Quote Link to comment Share on other sites More sharing options...
unofix Posted August 26, 2022 Share Posted August 26, 2022 4 minutes ago, alanfp said: But when I worked in a large office we all agreed that our cars drove slightly quicker immediately after we'd washed them! Just think with a couple of 'Go faster stripes' they would have been racing machines 🤣 1 Quote Link to comment Share on other sites More sharing options...
DrPepper Posted August 26, 2022 Author Share Posted August 26, 2022 😂 Ah crap I forgot.....I also put a new air freshener in. That explains it. Quote Link to comment Share on other sites More sharing options...
DrPepper Posted August 26, 2022 Author Share Posted August 26, 2022 42 minutes ago, Tizer said: Changing the O2 Sensor would have made the car drive better because would have been in Open Loop with the faulty one instead of Closed Loop. Interesting Tizer, I just assumed it wouldn't be that noticeable. Quote Link to comment Share on other sites More sharing options...
RAIDER32 Posted August 26, 2022 Share Posted August 26, 2022 1 hour ago, alanfp said: we all agreed that our cars drove slightly quicker immediately after we'd washed them! yeh, mine deffo feels quicker when it's just been cleaned 😁 (maybe it's the dehydration after hours of work 🤣) Quote Link to comment Share on other sites More sharing options...
TomsFocus Posted August 27, 2022 Share Posted August 27, 2022 11 hours ago, DrPepper said: 😂 Ah crap I forgot.....I also put a new air freshener in. That explains it. You were probably tripping on air freshener solvent then! Tbh, I must have carried out hundreds of oil changes now. I can't remember ever feeling that a car drives better afterwards. I'm fairly sure it is just placebo for those that do. People need to justify the cost & time they've put into it. For those doing it themselves, especially for the first time, it could also be the euphoria from the sense of achievement... 4 Quote Link to comment Share on other sites More sharing options...
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