Recent Topics
Myliftstand alternative jack stand
by momo
23 minutes 26 seconds ago
Kmart sale on Smitty's oil and ATF
by slacktide_bitog
Today at 02:53 PM
Napa master pack oil filter price
by Electromotive
Today at 02:39 PM
Local Big Lots still has Valvoline next gen 10w30
by Electromotive
Today at 01:25 PM
Best Value Differential Oil 75W-90
by KevinP
Today at 01:02 PM
kohler 17hp . changed oil , now will not run
by chad8
Today at 12:32 PM
Oil change recomendations for '11 Ranger 2.3 Liter
by ryan2022
Today at 11:49 AM
Suggestions for 94 Lexus LS400 ATF
by Gasbuggy
Today at 11:23 AM
GOST Diesel fueln
by m37charlie
Today at 11:10 AM
Old interesting finds
by car51
Today at 10:53 AM
Filling nail holes in drywall
by Drew99GT
Today at 10:47 AM
1987 ford 460 motorhome, which oil to use?
by digler
Today at 10:30 AM
Newest Members
Ruturaj, derfderfgoose, ssnead, mtrev, redtacoma
58277 Registered Users
Who's Online
76 registered (BigD1, b1amgm47, 87sammy, BrocLuno, 2015_PSD, Al, 10 invisible), 2035 Guests and 10 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
58277 Members
66 Forums
250840 Topics
4111403 Posts

Max Online: 2862 @ 07/07/14 03:10 PM
Donate to BITOG
Topic Options
#3255690 - 01/21/14 09:02 PM Neighbor's loud RX350
mclasser Offline


Registered: 04/13/13
Posts: 1218
Loc: The Right Coast
My neighbor got a new RX350 and was showing it to me the other day. We did a cold start in the morning and I was surprised at how loud the engine was. The temp. was in the low 30s and I know the engine is loud first thing in the morning, but still. We took it for a spin and the engine ultimately quieted down; I didn't expect a Lexus to be like this. I don't think my 12 yr old Accord is even that loud in the morning and Honda's are known to be noisy when cold.
_________________________
2013 Honda Pilot EX-L 4WD
2002 Honda Accord EX-L
2002 Infiniti I35


Top
#3255751 - 01/21/14 10:11 PM Re: Neighbor's loud RX350 [Re: mclasser]
vssjim Offline


Registered: 10/05/11
Posts: 393
Loc: McLean, Va.
If it's direct injection they are louder and newer toyota v6's are on the noisy side any way.

Top
#3255790 - 01/21/14 11:16 PM Re: Neighbor's loud RX350 [Re: vssjim]
Nick R Offline


Registered: 07/14/09
Posts: 11011
Loc: Albany, NY
Originally Posted By: vssjim
If it's direct injection they are louder and newer toyota v6's are on the noisy side any way.


+1. My focus, and the traverse are both DI and are pretty noisy when cold. A lot of it has to do with the Fuel injectors, and a lot also has to do with the ignition and valve timing when cold. Modern engines are programmed to severely retard the timing, to get EGT up, to help "light off" the catalytic converters quicker. Most newer engines also use much lighter, thinner exhaust manifolds, which make this much more noticeable audibly.
_________________________
2013 Ford Focus SE 2.0L/73,000miles/Motorcraft Blend 5W-20/FL-400S

Top
#3256069 - 01/22/14 10:02 AM Re: Neighbor's loud RX350 [Re: mclasser]
SteveSRT8 Offline


Registered: 10/10/08
Posts: 17508
Loc: Sunny Florida
Originally Posted By: mclasser
My neighbor got a new RX350 and was showing it to me the other day. We did a cold start in the morning and I was surprised at how loud the engine was. The temp. was in the low 30s and I know the engine is loud first thing in the morning, but still. We took it for a spin and the engine ultimately quieted down; I didn't expect a Lexus to be like this. I don't think my 12 yr old Accord is even that loud in the morning and Honda's are known to be noisy when cold.


x a dozen! Most DI vehicles I have heard are quite noisy, especially when first started.

Our neighbor has a beautiful new blue BMW with the 2 liter 4 banger, and it sounds just like a diesel when you first crank it up!
_________________________
"In a democracy, dissent is an act of faith."
J. William Fulbright
Best ET-12.79 @ 111 mph
4340 pounds, Street tires
Just like we go to Publix

Top
#3256100 - 01/22/14 10:34 AM Re: Neighbor's loud RX350 [Re: mclasser]
KrisZ Offline


Registered: 12/23/06
Posts: 5690
Loc: Toronto, Canada
Yes, lots of those DI engine have that diesel-y sound to them at idle even when fully warmed up.
I always notice this in the summer when driving with my windows down. Usually if a DI car sits next to me at a red light, I will hear that engine over mine.
_________________________
2015 Dodge//Grand Caravan-FF dumped
2006 Mazda 3-135k miles

Top
#3256612 - 01/22/14 06:43 PM Re: Neighbor's loud RX350 [Re: mclasser]
CBR.worm Offline


Registered: 05/10/05
Posts: 1747
Loc: Jupiter, Fl
My sister in law got a new RX350 - it makes a lot of noise at idle. My brother's new 328i sounds like a diesel.

I like it, it makes my piston slap more acceptable...
_________________________
'06 Infiniti G35 Sedan 6MT - 160k

Top
#3256622 - 01/22/14 06:56 PM Re: Neighbor's loud RX350 [Re: mclasser]
mclasser Offline


Registered: 04/13/13
Posts: 1218
Loc: The Right Coast
I don't think the RX350 comes with direct injection.
_________________________
2013 Honda Pilot EX-L 4WD
2002 Honda Accord EX-L
2002 Infiniti I35


Top
#3256624 - 01/22/14 06:56 PM Re: Neighbor's loud RX350 [Re: mclasser]
friendly_jacek Offline


Registered: 05/04/03
Posts: 6430
Loc: southeast US
LOL how many people jumped on the DI bandwagon while the RX350 has no DI engine (2GR-FE). It's classic:
http://en.wikipedia.org/wiki/Groupthink

Yes, that engine is generally noisy and some units are noisier than others (piston slap). I posted about mine a few time here.

Top
#3256636 - 01/22/14 07:03 PM Re: Neighbor's loud RX350 [Re: mclasser]
Eddie Online   happy


Registered: 12/07/03
Posts: 8116
Loc: Florida, Cape Coral
If like my Mazda, extra fuel is injected to heat up the cat quickly. Mine quites down after ~ 1 minute.
_________________________
CX5 Touring 2.5L :-)

Top
#3256678 - 01/22/14 07:34 PM Re: Neighbor's loud RX350 [Re: mclasser]
rslifkin Offline


Registered: 06/27/10
Posts: 2740
Loc: Rochester, NY
The comment about thinner exhaust manifolds is definitely a valid one. When I put headers on the Jeep, it gained a definite tick to the exhaust note, even after I made sure the header flanges were sealing properly. The thick cast iron manifolds were enough to block a lot of the ticking type noise on the exhaust pulses while the thinner walled headers let more of it escape.
_________________________
1998 Jeep Grand Cherokee 5.9 Limited with lots of mods (209k miles, bought with 100k in 1/2010)
Rotella T6 @ 6k OCI

Top
#3257214 - 01/23/14 09:22 AM Re: Neighbor's loud RX350 [Re: mclasser]
Hokiefyd Offline


Registered: 06/24/04
Posts: 13737
Loc: Virginia
Toyota's GR-series V-6 has always sounded like it was lubricated by marbles, at least to me. I've never cared for the way it sounds inside or outside the car.
_________________________
Cheers,
Jason

2009 Honda Ridgeline RTL
2005 Acura MDX Touring

Top