Kevron Posted July 11, 2003 Share Posted July 11, 2003 I have a 94 LS400 with 93K miles, the car is running fine, I asked my local dealership mechanic about putting synthetic oil in the car, he "couldn't" recommend it. He wouldn't tell me why. What are your thoughts? Kevin Quote Link to comment Share on other sites More sharing options...
ToddLS400 Posted July 11, 2003 Share Posted July 11, 2003 He's a mechanic, I wonder why he said "he couldn't recommend it"? What a jack-!Removed! mechanic if he doesn't have an answer for his "educated statements". His polluted mind probably wants to convey that there would be no benefit of using synthetics after 9 years of using regular oil. I've read that you suppose to run a brand new car on regular oil for the first 5,000 miles during the break in period. Then you switch to synthetic. I believe you can switch to synthetic at anytime. 95% of all mechanics should be put to sleep. Quote Link to comment Share on other sites More sharing options...
SKperformance Posted July 11, 2003 Share Posted July 11, 2003 i am guessing you aprove of syn todd lol it is the best and works great its flow rates alone are good enough for me to want to use them i have them in all my cars and it keeps them, working great i use 0w -30 winter 10 -30 in the summer when new and after 150 km i switch to 15w 50 summer and 0w 50 winter these are hard to come by rates of weight but the added benifit of them are tremendous especially where i am in canada we get hot summers and cold winters and i want only the best protection all year for the rest of my cars life Quote Link to comment Share on other sites More sharing options...
jzz30 Posted July 12, 2003 Share Posted July 12, 2003 toyota has their own engine oil so maybe he is told to only recomend their own oil? but still synthetic all the way Quote Link to comment Share on other sites More sharing options...
VMF Posted July 12, 2003 Share Posted July 12, 2003 the only problem you can get using sinthetic oil on the old engine is that you can get oil leaks. thats what i heard from some car enthuiasts i hang out with from time to time. i'm on a regular oil now and i'm switching to sinthetic next week. i have 125k on my engine and i will take my chanses:) Quote Link to comment Share on other sites More sharing options...
SRK Posted July 12, 2003 Share Posted July 12, 2003 I'm glad you didn't generalize to all mechanics Todd. I use the viscosity Toyota recommends, and that is 5W-30 year round, regardless of weather. The whole point of multi-grades was to eliminate seasonal oil changes for viscosity. 5W-30 works all the time. But I use Mobil 1 5W-30 in all of my cars, and convert them to it regardless of mileage on the engine. I have used synthetic at 500 miles on several engines I have rebuilt, and I have never seen any excess oil consumption. Quote Link to comment Share on other sites More sharing options...
SKperformance Posted July 12, 2003 Share Posted July 12, 2003 yah i guess there is no real need i am just over cautious but after hear a few other same milage lexus they have alot more upper end ticking from the valve train so i am going to support the difference on the over all wear reduction i also got lexus to do my last oil change 2 days ago using 10w 30 synthetic Quote Link to comment Share on other sites More sharing options...
ToddLS400 Posted July 12, 2003 Share Posted July 12, 2003 Synths are twice + the cost of regular oil. We're Lexus owners, we're use to overpaying for the upkeep... :o I suppose you can go to Wal-Mart and have them put synth in your Lex. It would probably be about $30 there. Regular oil changes are about $16 at Wallys. Quote Link to comment Share on other sites More sharing options...
VBdenny Posted July 12, 2003 Share Posted July 12, 2003 Hey Kevron, I most certainly would use synthetic oil. I have used it in all my vehicles for over ten years without any problems. I have never noticed it caused any oil leaks but I guess since the stuff is so slippery it could. For those of you in the great white north, synthetic oil is really good for very cold start ups. I use Valoline full synthetic 5W-30 year round. The stuff doesn't gum up when it's hot so you don't get much sludge build up in the engine. Luckily, the guy I bought my Lexus from used synthetic from day 1. I have also used sythetic in my brand new vehicles even during break in without any problem and I believe it's approved for break in as well. The stuff is just plain awesome. With Interstate driving you can easily go 5K miles between changes just don't use a cheap filter. I recommend a Fram Duraguard which is about ten bucks. Denny Quote Link to comment Share on other sites More sharing options...
jbrooksbreeden Posted July 12, 2003 Share Posted July 12, 2003 I buy Mobile 1 at Sam's Club or Walmart and my dealer uses my oil at my regular service, saving me about half the price of dealer-furnished oil. Not much of a difference with regular oil, but about a 50% savings with Mobil 1. ;) b. Quote Link to comment Share on other sites More sharing options...
kisik Posted July 13, 2003 Share Posted July 13, 2003 I use Mobil 1 10-30W new "high milage formula" synt. oil for my 94' LS400 with 92k mil. on it. I change it along with OEM Nippon filter($9) every 5k. It feels good that you treat your Lex nicely. Quote Link to comment Share on other sites More sharing options...
VMF Posted July 13, 2003 Share Posted July 13, 2003 so no1 heard about or had any problems with gettin leaks from sinthetic oil? Quote Link to comment Share on other sites More sharing options...
dcfish Posted July 13, 2003 Share Posted July 13, 2003 :D i run with NEO synthetic as i do in all of my cars , REDLINE synthetic is also very good , never had a leak .HAPPY DRIVING Quote Link to comment Share on other sites More sharing options...
ToddLS400 Posted July 13, 2003 Share Posted July 13, 2003 My friend told me last night that his Tahoe runs 20% cooler since he switched to synthetic oil last year. Cooler engine = more power. Quote Link to comment Share on other sites More sharing options...
Kevron Posted July 14, 2003 Author Share Posted July 14, 2003 Thank you for you input, synthetic 5W-30 it will be at next change. Quote Link to comment Share on other sites More sharing options...
darcmater Posted August 3, 2003 Share Posted August 3, 2003 Royal Purple 10-30 for six years .. wonderful performance. 92 ls4-- No oil use between (7k) changes! it amazes even me. but am easily impressed. Quote Link to comment Share on other sites More sharing options...
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