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my IS feels sluggish

814 Views 7 Replies 6 Participants Last post by  SeattleSheila
ive noticed that in the last week ot two my IS300 feels sluggish and has a hard time getting up to speed or growls a lot more when i floor it... its been getting a little warmer and arid so im guessing it may be because of the engine sucking in hot-dry air instead of cool-dense air... also i had my front two tires changed... i think that may be a factor but doubt it...

has anybody felt a drop in power or does your IS300 seem a little less eager after a while ?
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What octane gas are you using? I used 92 octane a few times and my car felt sluggish. If thats your case try using 93 octane and drop a bottle of NOS octane booster to get that nasty gas out! Youll notice a big difference!
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Why dont you pump 92 and see. Happened everytime I used it.
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