5 W 30, revisited
04-07-2004, 07:17 AM
#21
Guest
Posts: n/a
Re: 5 W 30, revisited
I use 5W30 in the winter
and then switch to 10W30 in the summer.
Around here the temp drops below -20C in winter
and rises above +29C in summer.
Matt wrote:
> I Googled this here and found lots of conflicting data, so let me tell
> the story:
>
> I got my 60,000 mile checkup done on my '99TJ 3 months ago at a
> dealer, with oil change included. Yesterday I went to change the oil
> and my drain plug had been crushed and totally stripped (the head, not
> the threads) apparently by an air wrench.So I took it back today and
> the dealer replaced the plug, and in so doing also changed the oil. My
> question: they used 5W30. I usually use Syntec 10W30. I noticed the
> sticker and asked the guy, and he said they use 5W30 all the time in
> TJs. (Apparently they use air wrenches to change oil, too, so I don't
> trust their judgment) They're a Jeep dealer, mind you. I live in
> Virginia and it gets hotter than hell in the summer. Is this safe?
> Isn't 5W30 too thin? Or am I worrying about nothing? If it is too
> thin, is there an additive I can toss in instead of another changeout
> for the next 3,000? Thanks in advance.
>
> Matt
and then switch to 10W30 in the summer.
Around here the temp drops below -20C in winter
and rises above +29C in summer.
Matt wrote:
> I Googled this here and found lots of conflicting data, so let me tell
> the story:
>
> I got my 60,000 mile checkup done on my '99TJ 3 months ago at a
> dealer, with oil change included. Yesterday I went to change the oil
> and my drain plug had been crushed and totally stripped (the head, not
> the threads) apparently by an air wrench.So I took it back today and
> the dealer replaced the plug, and in so doing also changed the oil. My
> question: they used 5W30. I usually use Syntec 10W30. I noticed the
> sticker and asked the guy, and he said they use 5W30 all the time in
> TJs. (Apparently they use air wrenches to change oil, too, so I don't
> trust their judgment) They're a Jeep dealer, mind you. I live in
> Virginia and it gets hotter than hell in the summer. Is this safe?
> Isn't 5W30 too thin? Or am I worrying about nothing? If it is too
> thin, is there an additive I can toss in instead of another changeout
> for the next 3,000? Thanks in advance.
>
> Matt
04-07-2004, 09:04 AM
#22
Guest
Posts: n/a
Re: 5 W 30, revisited
I wouldn't bother switching it out, but I would follow the manual's advice
at the next oil change. I would think if I did a lot of severe driving in
high temps, I would lean towards the 10w30, but if you only do a lot of
short trips without getting the engine up to operating temp, then 5w30 may
be OK. If a dealer is using non-recommended oil at oil changes, I would
think they are voiding warranties! Was the oil they used synthetic? If so,
you should be fine until next oil change.
Dana
at the next oil change. I would think if I did a lot of severe driving in
high temps, I would lean towards the 10w30, but if you only do a lot of
short trips without getting the engine up to operating temp, then 5w30 may
be OK. If a dealer is using non-recommended oil at oil changes, I would
think they are voiding warranties! Was the oil they used synthetic? If so,
you should be fine until next oil change.
Dana
04-07-2004, 09:04 AM
#23
Guest
Posts: n/a
Re: 5 W 30, revisited
I wouldn't bother switching it out, but I would follow the manual's advice
at the next oil change. I would think if I did a lot of severe driving in
high temps, I would lean towards the 10w30, but if you only do a lot of
short trips without getting the engine up to operating temp, then 5w30 may
be OK. If a dealer is using non-recommended oil at oil changes, I would
think they are voiding warranties! Was the oil they used synthetic? If so,
you should be fine until next oil change.
Dana
at the next oil change. I would think if I did a lot of severe driving in
high temps, I would lean towards the 10w30, but if you only do a lot of
short trips without getting the engine up to operating temp, then 5w30 may
be OK. If a dealer is using non-recommended oil at oil changes, I would
think they are voiding warranties! Was the oil they used synthetic? If so,
you should be fine until next oil change.
Dana
04-07-2004, 09:04 AM
#24
Guest
Posts: n/a
Re: 5 W 30, revisited
I wouldn't bother switching it out, but I would follow the manual's advice
at the next oil change. I would think if I did a lot of severe driving in
high temps, I would lean towards the 10w30, but if you only do a lot of
short trips without getting the engine up to operating temp, then 5w30 may
be OK. If a dealer is using non-recommended oil at oil changes, I would
think they are voiding warranties! Was the oil they used synthetic? If so,
you should be fine until next oil change.
Dana
at the next oil change. I would think if I did a lot of severe driving in
high temps, I would lean towards the 10w30, but if you only do a lot of
short trips without getting the engine up to operating temp, then 5w30 may
be OK. If a dealer is using non-recommended oil at oil changes, I would
think they are voiding warranties! Was the oil they used synthetic? If so,
you should be fine until next oil change.
Dana
04-07-2004, 09:04 AM
#25
Guest
Posts: n/a
Re: 5 W 30, revisited
I wouldn't bother switching it out, but I would follow the manual's advice
at the next oil change. I would think if I did a lot of severe driving in
high temps, I would lean towards the 10w30, but if you only do a lot of
short trips without getting the engine up to operating temp, then 5w30 may
be OK. If a dealer is using non-recommended oil at oil changes, I would
think they are voiding warranties! Was the oil they used synthetic? If so,
you should be fine until next oil change.
Dana
at the next oil change. I would think if I did a lot of severe driving in
high temps, I would lean towards the 10w30, but if you only do a lot of
short trips without getting the engine up to operating temp, then 5w30 may
be OK. If a dealer is using non-recommended oil at oil changes, I would
think they are voiding warranties! Was the oil they used synthetic? If so,
you should be fine until next oil change.
Dana
04-07-2004, 09:13 AM
#26
Guest
Posts: n/a
Re: 5 W 30, revisited
"FrankW" <fworm@mxznorpak.ca> wrote in message
news:v_ednfDxKqyDfu7dRVn-tw@magma.ca...
> I use 5W30 in the winter
> and then switch to 10W30 in the summer.
> Around here the temp drops below -20C in winter
> and rises above +29C in summer.
Manufacturers generally recommend non-synthetic 5w-30 for low ambient temps.
Despite the 30 rating, it is less effective and even detrimental at very
high ambient temps. Most owners manuals will recommend a switch to 10w-30 in
operating conditions which include ambient temps abover 90 F.
Synthetics are another matter. Mercedes Benz, for example, recommends 5w-30
Mobil 1 in vehicles using their computerized Flexible Service System.
Depending upon operating conditions (ambient, trip length, average speeds,
etc.) can theoretically recommend an oil change interval as long as 20k
miles.
04-07-2004, 09:13 AM
#27
Guest
Posts: n/a
Re: 5 W 30, revisited
"FrankW" <fworm@mxznorpak.ca> wrote in message
news:v_ednfDxKqyDfu7dRVn-tw@magma.ca...
> I use 5W30 in the winter
> and then switch to 10W30 in the summer.
> Around here the temp drops below -20C in winter
> and rises above +29C in summer.
Manufacturers generally recommend non-synthetic 5w-30 for low ambient temps.
Despite the 30 rating, it is less effective and even detrimental at very
high ambient temps. Most owners manuals will recommend a switch to 10w-30 in
operating conditions which include ambient temps abover 90 F.
Synthetics are another matter. Mercedes Benz, for example, recommends 5w-30
Mobil 1 in vehicles using their computerized Flexible Service System.
Depending upon operating conditions (ambient, trip length, average speeds,
etc.) can theoretically recommend an oil change interval as long as 20k
miles.
04-07-2004, 09:13 AM
#28
Guest
Posts: n/a
Re: 5 W 30, revisited
"FrankW" <fworm@mxznorpak.ca> wrote in message
news:v_ednfDxKqyDfu7dRVn-tw@magma.ca...
> I use 5W30 in the winter
> and then switch to 10W30 in the summer.
> Around here the temp drops below -20C in winter
> and rises above +29C in summer.
Manufacturers generally recommend non-synthetic 5w-30 for low ambient temps.
Despite the 30 rating, it is less effective and even detrimental at very
high ambient temps. Most owners manuals will recommend a switch to 10w-30 in
operating conditions which include ambient temps abover 90 F.
Synthetics are another matter. Mercedes Benz, for example, recommends 5w-30
Mobil 1 in vehicles using their computerized Flexible Service System.
Depending upon operating conditions (ambient, trip length, average speeds,
etc.) can theoretically recommend an oil change interval as long as 20k
miles.
04-07-2004, 09:13 AM
#29
Guest
Posts: n/a
Re: 5 W 30, revisited
"FrankW" <fworm@mxznorpak.ca> wrote in message
news:v_ednfDxKqyDfu7dRVn-tw@magma.ca...
> I use 5W30 in the winter
> and then switch to 10W30 in the summer.
> Around here the temp drops below -20C in winter
> and rises above +29C in summer.
Manufacturers generally recommend non-synthetic 5w-30 for low ambient temps.
Despite the 30 rating, it is less effective and even detrimental at very
high ambient temps. Most owners manuals will recommend a switch to 10w-30 in
operating conditions which include ambient temps abover 90 F.
Synthetics are another matter. Mercedes Benz, for example, recommends 5w-30
Mobil 1 in vehicles using their computerized Flexible Service System.
Depending upon operating conditions (ambient, trip length, average speeds,
etc.) can theoretically recommend an oil change interval as long as 20k
miles.
04-07-2004, 09:32 AM
#30
Guest
Posts: n/a
Re: 5 W 30, revisited
"Jerry Bransford" <jerrypb@mecox.net> wrote in message news:<4RMcc.2250$4K.1433@fed1read05>...
> That's an old wive's tale 5W-30 is 30 weight when warmed up just like 10W-30
> is.
>
> Jerry
>
> --
> --
> Jerry Bransford
> To email, remove 'me' from my email address
> N6TAY, PP-ASEL
> See the Geezer Jeep at
> http://members.***.net/jerrypb/
>
Thanks! I'll sleep better knowing that. I was worried about it.
Matt
> That's an old wive's tale 5W-30 is 30 weight when warmed up just like 10W-30
> is.
>
> Jerry
>
> --
> --
> Jerry Bransford
> To email, remove 'me' from my email address
> N6TAY, PP-ASEL
> See the Geezer Jeep at
> http://members.***.net/jerrypb/
>
Thanks! I'll sleep better knowing that. I was worried about it.
Matt