ED. Posted May 24, 2008 Share Posted May 24, 2008 I just did the oil in my 7 and went 5W-30. Will that suit for the Lex as well? TIA, Quote Link to comment Share on other sites More sharing options...
landar Posted May 25, 2008 Share Posted May 25, 2008 Yes, you should be fine with 5w-30 as long as the engine is tight and not burning oil. I use 5w-30 Mobil One year-round. Quote Link to comment Share on other sites More sharing options...
Lexusfreak Posted May 25, 2008 Share Posted May 25, 2008 5W 30 Quote Link to comment Share on other sites More sharing options...
jcrome04 Posted May 26, 2008 Share Posted May 26, 2008 I use Mobil1 5W-30 Full Synth Quote Link to comment Share on other sites More sharing options...
VBdenny Posted May 26, 2008 Share Posted May 26, 2008 Mobil 1, 5W-30 in all my vehicles (even lawn mower). Quote Link to comment Share on other sites More sharing options...
silvermistLS Posted May 29, 2008 Share Posted May 29, 2008 Mobil1 full synthetic weight 10-30 in my lex. Quote Link to comment Share on other sites More sharing options...
cmmetcalf Posted May 30, 2008 Share Posted May 30, 2008 I just did the oil in my 7 and went 5W-30. Will that suit for the Lex as well?TIA, Mobil 1 Synthetic 5W-30 winter and 10W-30 summer as long as engine isn't burning any oil. I have always added a pint of Marvel Mystery Oil at each oil change to try to keep head deposits down. 6-7.5K change intervals always with new Oil Filter (Factory) depending on how milage was accumulated during the period and the season. Quote Link to comment Share on other sites More sharing options...
AZ Mike Posted May 30, 2008 Share Posted May 30, 2008 What is the rationale for using 10/30 instead of 5/30? Is that for a car that may seep a bit at seals, so a slightly thicker oil won't leak as much? I assume either weight, especially if synthetic, would handle any hot summer driving..... Quote Link to comment Share on other sites More sharing options...
silvermistLS Posted June 3, 2008 Share Posted June 3, 2008 What is the rationale for using 10/30 instead of 5/30? Is that for a car that may seep a bit at seals, so a slightly thicker oil won't leak as much? I assume either weight, especially if synthetic, would handle any hot summer driving..... 10/30 is more recommended for higher miles and warmer climates.. viscosity is a bit thicker... really not much of a dif. Quote Link to comment Share on other sites More sharing options...
AZ Mike Posted June 3, 2008 Share Posted June 3, 2008 10/30 is more recommended for higher miles and warmer climates.. viscosity is a bit thicker... really not much of a dif. Is this due to the expectation that seals may be deteriorated, or that there may be wear, or strictly due to a warmer environment? I just moved to Phoenix and need to change the oil. My LS is a '99, but only has 60K miles, so certainly not the typical wear you would expect for a '99. I was planning to use 5-30 as I have in the past, especially since it should be good for slightly better mileage. But, if there is good reason to go with 10-30, I already have that around for another car. Quote Link to comment Share on other sites More sharing options...
ls400_1999 Posted June 4, 2008 Share Posted June 4, 2008 5W-30 full synthetic: that is what I am going to use for my 1999 Lexus LS400. Question: Can I use oil filter from Mobil for my next oil change? I have been use OEM filter from dealer but now I have 2 oil filters from Mobil and I don't want to waste them. Thank Quote Link to comment Share on other sites More sharing options...
silvermistLS Posted June 5, 2008 Share Posted June 5, 2008 10/30 is more recommended for higher miles and warmer climates.. viscosity is a bit thicker... really not much of a dif. Is this due to the expectation that seals may be deteriorated, or that there may be wear, or strictly due to a warmer environment? I just moved to Phoenix and need to change the oil. My LS is a '99, but only has 60K miles, so certainly not the typical wear you would expect for a '99. I was planning to use 5-30 as I have in the past, especially since it should be good for slightly better mileage. But, if there is good reason to go with 10-30, I already have that around for another car. Apart from seal issues, If you are going to be residing in AZ, I would certainly go with 10/30... thicker viscosity given the fact that you are going to see some seriously high temps... Quote Link to comment Share on other sites More sharing options...
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