I would like to change my RX300 engine for a diesel as I love the car but 15 MPG is not good, any ideas ?

Asked by Oct 06, 2013 at 03:53 PM about the 1999 Lexus RX 300 Base AWD

Question type: Car Customization

1 Answer

83,315

To change it to a diesel would be cost prohibitive, plus it would no longer pass any emissions testing. You need to have it checked over, my 99 RX 300 got 20 to 22 on the highway and dropped to 18 around town, the only thing that wasn't stock was a cold air package and iridium spark plugs.

1 out of 1 people think this is helpful.
Best Answer

Your Answer

Add photo

Related Questions

  • Rx300 Lexus fuse box smoking 7 answers

    So my buddy's Lexus had a problem. He said that the fuse box just started smoking. We replaced some blown 15As and they popped as soon as we put them in and we replaced tel fuse I have no idea wha...

    Lexus RX 300

    -

    Maintenance & Repair

  • im thinking about buying an rx300 with high miles.... 2 answers

    this car has been maintained and in great aesthetic condition. The only real problem is it has 193,000 miles. Ive never owned a car that has high miles before but Im pregnant and have to upgrade to a...

    2000 Lexus RX 300 Base AWD

    -

    Shopping & Pricing

  • ? LEXUS RX300 TRANNY ISSUES OVER 120K MI...SHOULD I BUY EXTENDED WARRANTY TO GO TO 200K? 4 answers

    EXPLAINED ABOVE...

    2002 Lexus RX 300 Base AWD

    -

    Maintenance & Repair

  • Rattling noise on 2003 RX 300 at cold start only? 7 answers

    Here is a video I took of the noise when starting cold - FYI by cold start I mean every morning regardless of temperature. Has 128k miles, was told timing belt was changed and mechanic confirmed it ...

    2003 Lexus RX 300 Base AWD

    -

    Maintenance & Repair

  • Repaint 1999 Lexus ES 300 Coach 2 answers

    I want to completely repaint the entire car due to severe clear coat pealing and pitting. A Custom complete 3-5 stage Metallic or Pearl 2014 paint color PPG/Sherwin Williams quote is $3500.00 new bu...

    1999 Lexus ES 300 Base

    -

    Car Customization

Search Lexus RX 300 Questions

UK Questions

Are you a UK consumer? CarGurus now has a discussion forum in the UK.

Lexus RX 300 Experts

#1 Rx300_21001
Rx300_21001
Reputation 1,730
#2 John Orlando
John Orlando
Reputation 920
#3 mrsvirtuous
mrsvirtuous
Reputation 610
View All

Related Models For Sale

Used Honda CR-V
882 Great Deals out of 63,754 listings starting at $1,100
Used Toyota 4Runner
378 Great Deals out of 20,766 listings starting at $2,495
Used Toyota Camry
1,203 Great Deals out of 96,015 listings starting at $1,250
Used Toyota RAV4
748 Great Deals out of 55,167 listings starting at $2,488
Used Lexus ES 300
17 Great Deals out of 1,066 listings starting at $2,499
Used Honda Accord
984 Great Deals out of 75,076 listings starting at $899
Used Jeep Grand Cherokee
936 Great Deals out of 66,509 listings starting at $300
Used BMW X5
517 Great Deals out of 15,557 listings starting at $2,500

Used Cars For Sale

2003 Lexus RX 300 Base AWD For Sale
4 Great Deals out of 93 listings starting at $2,800
2002 Lexus RX 300 Base AWD For Sale
3 Great Deals out of 156 listings starting at $3,499
2001 Lexus RX 300 Base AWD For Sale
3 Great Deals out of 143 listings starting at $2,795
2000 Lexus RX 300 Base AWD For Sale
3 Great Deals out of 176 listings starting at $1,794