TCCoA Forums banner

1 - 14 of 14 Posts

·
Registered
Joined
·
219 Posts
Discussion Starter #1
Ive noticed that when my car is cold it feels less powerful. No pinging. no spark knock. Ive cleaned my MAF and it has a fresh tune up on it. And when it is seeming underpowered it also doesnt sound as loud (no mufflers)

Is there a reason for this? Once the car warms up its fine. I dont run it hard when its cold but I can just tell its not right and it definitely sounds quieter. Someone told me there are baffles or something in the exhaust to help the car warm up faster or something... Any truth to that?
 

·
Fry Rice Specialist
Joined
·
4,794 Posts
what grade of oil are you using? too thick of oil may cause this.

the baffle stuff? bull****.
 

·
Registered
Joined
·
398 Posts
What's the recomended oil? I'm getting close to my first 3,000 miles on my T-Bird! I noticed under the hood it says 5W-30...but I heard to use the standard 10W-30....I don't know! lol
 

·
Premium Member
Joined
·
2,545 Posts
I use what I can find... sometimes walmart runs out of the big jugs so sometimes my car gets 5w-30 and others 10w-30... but its full synthetic mobile 1. My car used to do that but it was the MAF sensor... so I don't know. you would floor it when cold and it wouldn't have any power at all and wouldn't go over 4K RPM...
 

·
MN12 Fanatic
Joined
·
1,459 Posts
When the car is cold, it runs in what is called open loop mode. Which mean the o2 sensors are not in use at the time. Therefore you are not running at optimal performance. It is normal for a car to feel/run slower at startup. It is not recommended to beat on the car while it is in that state, can cause damage to the motor.

;)
 

·
Registered
Joined
·
219 Posts
Discussion Starter #6
I run 10W-30 in the summer and 5W-30 in the winter. i am considering a synthetic swap but I am swapping to mercon V in my tranny this week so no money for an oil change til next week. And Im over the 3,000 mile mark by about 300 miles! EEEK!
 

·
Registered
Joined
·
398 Posts
Hmm...sounds like a really good idea! I'll go with 5W-30 full synthetic, then. Should hit another 3,000 by the time summer comes.
 

·
Registered
Joined
·
219 Posts
Discussion Starter #9
probably a good idea to do it.... I got some extra hours this week so it can pay for it. Can I just switch to full synthetic if its never had synthetic before?
 

·
Premium Member
Joined
·
2,545 Posts
okay... that is an age old question... I've heard its a good idea to use an engine flush and then put in the full synthetic. I did it. I think I was at about 68K miles on hte car. I put in a 5W-20 or osmething like that and then amsoil engine flush treatment. put a new filter on and Let the car high idle for 15 minutes. LOL I threw a check engine light for running rich so I guess it was starting to get up into the cylinders but anyway... turned the car off got underneath and drained the oil hot. I will tell you right now... the oil filter that was done with the engine flush was just as heavy as the oil filter that I took off with 2500 miles on it. So whoever said its not needed is full of ****. 4.6L may not be as dirty as say an old 351 Windsor but they still collect. So then After that I put a 10W-30 full synthetic amsoil in. I used a high mileage filter from amsoil and I will tell you what... at 7K miles the oil looked like what a regular dino oil looked like new... it was still pretty clean. I've switched to mobil 1 now though cuz I was not going to pay that freakin much for amsoil again. I didn't realize they got shipping AND sales tax off you. so its much cheaper just go buy Mobile one with a wix filter and go from there. I change oil at 5K miles and the oil filter every 2500 miles.
 

·
Registered
Joined
·
219 Posts
Discussion Starter #11
Well as it is it has 89k on the engine which isnt bad for a 94. I have noticed that the oil does get dirtier quicker than my S4 in comparison... So if I chose to go to synthetic I shoud go with the same 5w30 or go to 5w20 weight? And where do i get the engine flush? Is there a specific way to do it? And do I have to use new oil and a new filter to flush it or can I use the oil and filter thats in it now? And have you noticed a difference? Sorry for all of the questions but I want my baby to stay nice and run as good as it does now. Synthetic won me over when I rode in my friends 90 SC with 190k miles all original.... the car ran and drove almost like new.... full synthetic since 50k miles. That sold me on the oil
 

·
The Parts Guy
Joined
·
7,269 Posts
FunktasticLucky said:
... turned the car off got underneath and drained the oil hot. I will tell you right now... the oil filter that was done with the engine flush was just as heavy as the oil filter that I took off with 2500 miles on it. So whoever said its not needed is full of ****.
Are you basing the amount of particles collected in the filter by the weight of the filter?

If you really want to know how much junk is in the filter, cut it open.

-Rod
 

·
Registered
Joined
·
398 Posts
Do I have to "flush" the engine when switching to full synthetic? I plan on keeping the regular 3,000 mile routine...can I skip the flush since it'll sorta happen over time? Or would I hurt myself that way?

Also, what's up with this 5W-20 mentioned? Is this better? What's optimal? The sticker says 5W-30, I was raised on 10W-30...ahhh!!!! lol I know 5W-30 is thinner than 10W-30...but what's 5W-20 compared to the others?
 
1 - 14 of 14 Posts
Top